diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 81f7bb40799..509e1b67dee 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -422,3 +422,22 @@ jobs:
 
       - name: Run tests
         run: tox -e lint-opentelemetry-test-utils
+
+  lint-license-header-check:
+    name: license-header-check
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repo @ SHA - ${{ github.sha }}
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.14
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.14"
+
+      - name: Install tox
+        run: pip install tox-uv
+
+      - name: Run tests
+        run: tox -e lint-license-header-check
diff --git a/CHANGELOG.md b/CHANGELOG.md
index abf32976e9b..574320e1fd3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Switch to SPDX license headers and add CI enforcement
+  ([#5177](https://github.com/open-telemetry/opentelemetry-python/pull/5177))
 - `opentelemetry-api`: Enforce W3C Baggage size limits on outbound propagation in `W3CBaggagePropagator.inject()`. Previously only inbound extraction enforced limits; now inject also caps entries at 180, individual pairs at 4096 bytes, and total header at 8192 bytes per the W3C Baggage spec. The extract path max_pairs limit now counts all size-valid entries rather than only successfully parsed ones.
   ([#5163](https://github.com/open-telemetry/opentelemetry-python/pull/5163))
 - `opentelemetry-sdk`: add `additional_properties` support to generated config models via custom `datamodel-codegen` template, enabling plugin/custom component names to flow through typed dataclasses
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fa089fa037b..820c0f3e104 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -331,6 +331,16 @@ automatically load as options for the `opentelemetry-instrument` command.
 
 ## Style Guide
 
+* All Python files must include the following SPDX license header as the first
+  two lines (or immediately after a shebang line):
+
+  ```python
+  # Copyright The OpenTelemetry Authors
+  # SPDX-License-Identifier: Apache-2.0
+  ```
+
+  This is enforced by CI via `tox -e lint-license-header-check`.
+
 * docstrings should adhere to the [Google Python Style
   Guide](http://google.github.io/styleguide/pyguide.html#38-comments-and-docstrings)
   as specified with the [napoleon
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/generator.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/generator.py
index acceb503ff8..885a7124b2a 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/generator.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/generator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-member,invalid-name,too-many-lines
 
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/plugin.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/plugin.py
index ce9e8b8a30d..00a09fdb205 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/plugin.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/plugin.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-member
 
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/runtime/json_codec.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/runtime/json_codec.py
index da1f40b0484..c4a97026303 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/runtime/json_codec.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/runtime/json_codec.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/types.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/types.py
index 5424d279784..bc2da8d99ef 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/types.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/types.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-member
 
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/version/__init__.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/version/__init__.py
index ed89ddd1cc5..12343a82956 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/version/__init__.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.62b0.dev"
diff --git a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/writer.py b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/writer.py
index 687de172d5b..0db9b101d70 100644
--- a/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/writer.py
+++ b/codegen/opentelemetry-codegen-json/src/opentelemetry/codegen/json/writer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/codegen/opentelemetry-codegen-json/tests/conftest.py b/codegen/opentelemetry-codegen-json/tests/conftest.py
index d349025bf45..888ff11bcd7 100644
--- a/codegen/opentelemetry-codegen-json/tests/conftest.py
+++ b/codegen/opentelemetry-codegen-json/tests/conftest.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=redefined-outer-name
 
diff --git a/codegen/opentelemetry-codegen-json/tests/test_json_codec.py b/codegen/opentelemetry-codegen-json/tests/test_json_codec.py
index 3cfa07b764d..552f196b4bb 100644
--- a/codegen/opentelemetry-codegen-json/tests/test_json_codec.py
+++ b/codegen/opentelemetry-codegen-json/tests/test_json_codec.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import math
 from typing import Optional, Union
diff --git a/codegen/opentelemetry-codegen-json/tests/test_protobuf_compatibility.py b/codegen/opentelemetry-codegen-json/tests/test_protobuf_compatibility.py
index 19f30be795e..c820413a537 100644
--- a/codegen/opentelemetry-codegen-json/tests/test_protobuf_compatibility.py
+++ b/codegen/opentelemetry-codegen-json/tests/test_protobuf_compatibility.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: skip-file
 # ruff: noqa: PLC0415
diff --git a/codegen/opentelemetry-codegen-json/tests/test_serde.py b/codegen/opentelemetry-codegen-json/tests/test_serde.py
index 67db5366196..d2199250ece 100644
--- a/codegen/opentelemetry-codegen-json/tests/test_serde.py
+++ b/codegen/opentelemetry-codegen-json/tests/test_serde.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: skip-file
 # ruff: noqa: PLC0415
diff --git a/codegen/opentelemetry-codegen-json/tests/test_types.py b/codegen/opentelemetry-codegen-json/tests/test_types.py
index 6524bd3b3d2..178fcae861d 100644
--- a/codegen/opentelemetry-codegen-json/tests/test_types.py
+++ b/codegen/opentelemetry-codegen-json/tests/test_types.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-member
 
diff --git a/codegen/opentelemetry-codegen-json/tests/test_writer.py b/codegen/opentelemetry-codegen-json/tests/test_writer.py
index e9565e55dec..4c850e5e2f7 100644
--- a/codegen/opentelemetry-codegen-json/tests/test_writer.py
+++ b/codegen/opentelemetry-codegen-json/tests/test_writer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from typing import Any, Optional
 
 import pytest  # type: ignore
diff --git a/docs/conf.py b/docs/conf.py
index 8ca6a83b5b3..5ddd53be9cf 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # Configuration file for the Sphinx documentation builder.
 #
 # This file only contains a selection of the most common options. For a full
diff --git a/docs/examples/auto-instrumentation/client.py b/docs/examples/auto-instrumentation/client.py
index 508a9b11de7..337a0d66c54 100644
--- a/docs/examples/auto-instrumentation/client.py
+++ b/docs/examples/auto-instrumentation/client.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import sys
 
diff --git a/docs/examples/auto-instrumentation/server_automatic.py b/docs/examples/auto-instrumentation/server_automatic.py
index 9c247a049a8..90ad10002cc 100644
--- a/docs/examples/auto-instrumentation/server_automatic.py
+++ b/docs/examples/auto-instrumentation/server_automatic.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from flask import Flask, request
 
diff --git a/docs/examples/auto-instrumentation/server_manual.py b/docs/examples/auto-instrumentation/server_manual.py
index 38abc02fb4f..8e17c757936 100644
--- a/docs/examples/auto-instrumentation/server_manual.py
+++ b/docs/examples/auto-instrumentation/server_manual.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from flask import Flask, request
 
diff --git a/docs/examples/auto-instrumentation/server_programmatic.py b/docs/examples/auto-instrumentation/server_programmatic.py
index 759613e50d5..23c03bcad9f 100644
--- a/docs/examples/auto-instrumentation/server_programmatic.py
+++ b/docs/examples/auto-instrumentation/server_programmatic.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from flask import Flask, request
 
diff --git a/docs/examples/basic_context/async_context.py b/docs/examples/basic_context/async_context.py
index d80ccb31e01..0b59ec069bb 100644
--- a/docs/examples/basic_context/async_context.py
+++ b/docs/examples/basic_context/async_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/docs/examples/basic_context/child_context.py b/docs/examples/basic_context/child_context.py
index d2a6d50136a..757763fbdb5 100644
--- a/docs/examples/basic_context/child_context.py
+++ b/docs/examples/basic_context/child_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import baggage, trace
 
diff --git a/docs/examples/basic_context/implicit_context.py b/docs/examples/basic_context/implicit_context.py
index 0d894480585..90fbe1b7aac 100644
--- a/docs/examples/basic_context/implicit_context.py
+++ b/docs/examples/basic_context/implicit_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import baggage, trace
 from opentelemetry.sdk.trace import TracerProvider
diff --git a/docs/examples/basic_tracer/basic_trace.py b/docs/examples/basic_tracer/basic_trace.py
index bb1e341a61f..b5cdab68c98 100644
--- a/docs/examples/basic_tracer/basic_trace.py
+++ b/docs/examples/basic_tracer/basic_trace.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.sdk.trace import TracerProvider
diff --git a/docs/examples/basic_tracer/resources.py b/docs/examples/basic_tracer/resources.py
index 87853a8f66b..305ccedc940 100644
--- a/docs/examples/basic_tracer/resources.py
+++ b/docs/examples/basic_tracer/resources.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.sdk.resources import Resource
diff --git a/docs/examples/django/client.py b/docs/examples/django/client.py
index d8d476902e8..707004c87ae 100644
--- a/docs/examples/django/client.py
+++ b/docs/examples/django/client.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from sys import argv
 
diff --git a/docs/examples/django/instrumentation_example/asgi.py b/docs/examples/django/instrumentation_example/asgi.py
index dd8fb568f4a..5f6487b1e8f 100644
--- a/docs/examples/django/instrumentation_example/asgi.py
+++ b/docs/examples/django/instrumentation_example/asgi.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 ASGI config for instrumentation_example project.
 
diff --git a/docs/examples/django/instrumentation_example/settings.py b/docs/examples/django/instrumentation_example/settings.py
index b5b8897b91b..33e631ea666 100644
--- a/docs/examples/django/instrumentation_example/settings.py
+++ b/docs/examples/django/instrumentation_example/settings.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 Django settings for instrumentation_example project.
 
diff --git a/docs/examples/django/instrumentation_example/urls.py b/docs/examples/django/instrumentation_example/urls.py
index fcdb2e09be8..d408a159eef 100644
--- a/docs/examples/django/instrumentation_example/urls.py
+++ b/docs/examples/django/instrumentation_example/urls.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """instrumentation_example URL Configuration
 
 The `urlpatterns` list routes URLs to views. For more information please see:
diff --git a/docs/examples/django/instrumentation_example/wsgi.py b/docs/examples/django/instrumentation_example/wsgi.py
index 70ea9e0db56..46c0c26f3f6 100644
--- a/docs/examples/django/instrumentation_example/wsgi.py
+++ b/docs/examples/django/instrumentation_example/wsgi.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 WSGI config for instrumentation_example project.
 
diff --git a/docs/examples/django/manage.py b/docs/examples/django/manage.py
index 75d9bc2c68b..2ddd5e8eb93 100755
--- a/docs/examples/django/manage.py
+++ b/docs/examples/django/manage.py
@@ -1,17 +1,9 @@
 #!/usr/bin/env python
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 
 """Django"s command-line utility for administrative tasks."""
 
diff --git a/docs/examples/django/pages/__init__.py b/docs/examples/django/pages/__init__.py
index 5855e41f3a5..de1bfea18ad 100644
--- a/docs/examples/django/pages/__init__.py
+++ b/docs/examples/django/pages/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 default_app_config = "pages.apps.PagesConfig"
diff --git a/docs/examples/django/pages/apps.py b/docs/examples/django/pages/apps.py
index 0f12b7b66ca..ed8e1efebfc 100644
--- a/docs/examples/django/pages/apps.py
+++ b/docs/examples/django/pages/apps.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from django.apps import AppConfig
 
 
diff --git a/docs/examples/django/pages/urls.py b/docs/examples/django/pages/urls.py
index 99c95765a42..cf77a51b6c7 100644
--- a/docs/examples/django/pages/urls.py
+++ b/docs/examples/django/pages/urls.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from django.urls import path
 
 from .views import home_page_view
diff --git a/docs/examples/django/pages/views.py b/docs/examples/django/pages/views.py
index e805f43186a..83d532dda72 100644
--- a/docs/examples/django/pages/views.py
+++ b/docs/examples/django/pages/views.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from django.http import HttpResponse
 
 from opentelemetry import trace
diff --git a/docs/examples/error_handler/error_handler_0/src/error_handler_0/__init__.py b/docs/examples/error_handler/error_handler_0/src/error_handler_0/__init__.py
index ef3034bc6b9..f0ad51789ac 100644
--- a/docs/examples/error_handler/error_handler_0/src/error_handler_0/__init__.py
+++ b/docs/examples/error_handler/error_handler_0/src/error_handler_0/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 
diff --git a/docs/examples/error_handler/error_handler_0/src/error_handler_0/version/__init__.py b/docs/examples/error_handler/error_handler_0/src/error_handler_0/version/__init__.py
index c829b957573..8aea8992aeb 100644
--- a/docs/examples/error_handler/error_handler_0/src/error_handler_0/version/__init__.py
+++ b/docs/examples/error_handler/error_handler_0/src/error_handler_0/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.23.dev0"
diff --git a/docs/examples/error_handler/error_handler_1/src/error_handler_1/__init__.py b/docs/examples/error_handler/error_handler_1/src/error_handler_1/__init__.py
index 1f210a384f6..393de26e371 100644
--- a/docs/examples/error_handler/error_handler_1/src/error_handler_1/__init__.py
+++ b/docs/examples/error_handler/error_handler_1/src/error_handler_1/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 
diff --git a/docs/examples/error_handler/error_handler_1/src/error_handler_1/version/__init__.py b/docs/examples/error_handler/error_handler_1/src/error_handler_1/version/__init__.py
index c829b957573..8aea8992aeb 100644
--- a/docs/examples/error_handler/error_handler_1/src/error_handler_1/version/__init__.py
+++ b/docs/examples/error_handler/error_handler_1/src/error_handler_1/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.23.dev0"
diff --git a/docs/examples/error_handler/example.py b/docs/examples/error_handler/example.py
index 372c39c16fd..f251f25d4ef 100644
--- a/docs/examples/error_handler/example.py
+++ b/docs/examples/error_handler/example.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 from opentelemetry.sdk.error_handler import GlobalErrorHandler
 
 # ZeroDivisionError to be handled by ErrorHandler0
diff --git a/docs/examples/fork-process-model/flask-gunicorn/app.py b/docs/examples/fork-process-model/flask-gunicorn/app.py
index 008e1f04d51..9213408bf81 100644
--- a/docs/examples/fork-process-model/flask-gunicorn/app.py
+++ b/docs/examples/fork-process-model/flask-gunicorn/app.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import flask
 from flask import request
diff --git a/docs/examples/fork-process-model/flask-gunicorn/gunicorn.conf.py b/docs/examples/fork-process-model/flask-gunicorn/gunicorn.conf.py
index 34b4591596c..51f852d6bc4 100644
--- a/docs/examples/fork-process-model/flask-gunicorn/gunicorn.conf.py
+++ b/docs/examples/fork-process-model/flask-gunicorn/gunicorn.conf.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import metrics, trace
 from opentelemetry.exporter.otlp.proto.grpc.metric_exporter import (
diff --git a/docs/examples/fork-process-model/flask-uwsgi/app.py b/docs/examples/fork-process-model/flask-uwsgi/app.py
index 1191bcc30e0..d822bc7f9b3 100644
--- a/docs/examples/fork-process-model/flask-uwsgi/app.py
+++ b/docs/examples/fork-process-model/flask-uwsgi/app.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import flask
 from flask import request
diff --git a/docs/examples/logs/example.py b/docs/examples/logs/example.py
index 51d12ceee11..08d04e90ac7 100644
--- a/docs/examples/logs/example.py
+++ b/docs/examples/logs/example.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import logging
 
 from opentelemetry import trace
diff --git a/docs/examples/metrics/instruments/example.py b/docs/examples/metrics/instruments/example.py
index 90a9f7fa234..c60deb0ee83 100644
--- a/docs/examples/metrics/instruments/example.py
+++ b/docs/examples/metrics/instruments/example.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 from typing import Iterable
 
 from opentelemetry.exporter.otlp.proto.grpc.metric_exporter import (
diff --git a/docs/examples/metrics/prometheus-grafana/prometheus-monitor.py b/docs/examples/metrics/prometheus-grafana/prometheus-monitor.py
index 941be3bcd3b..c217b4ff5b1 100644
--- a/docs/examples/metrics/prometheus-grafana/prometheus-monitor.py
+++ b/docs/examples/metrics/prometheus-grafana/prometheus-monitor.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import random
 import time
 
diff --git a/docs/examples/metrics/reader/preferred_aggregation.py b/docs/examples/metrics/reader/preferred_aggregation.py
index a332840d3f9..b25b2038c09 100644
--- a/docs/examples/metrics/reader/preferred_aggregation.py
+++ b/docs/examples/metrics/reader/preferred_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import time
 
diff --git a/docs/examples/metrics/reader/preferred_exemplarfilter.py b/docs/examples/metrics/reader/preferred_exemplarfilter.py
index fd1e1cccb60..e519bc1aa06 100644
--- a/docs/examples/metrics/reader/preferred_exemplarfilter.py
+++ b/docs/examples/metrics/reader/preferred_exemplarfilter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import time
 
 from opentelemetry import trace
diff --git a/docs/examples/metrics/reader/preferred_temporality.py b/docs/examples/metrics/reader/preferred_temporality.py
index 910c3fc953b..070d9c70e43 100644
--- a/docs/examples/metrics/reader/preferred_temporality.py
+++ b/docs/examples/metrics/reader/preferred_temporality.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import time
 
diff --git a/docs/examples/metrics/reader/synchronous_gauge_read.py b/docs/examples/metrics/reader/synchronous_gauge_read.py
index d45f7ff00da..0296725ce60 100644
--- a/docs/examples/metrics/reader/synchronous_gauge_read.py
+++ b/docs/examples/metrics/reader/synchronous_gauge_read.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import math
 from typing import Iterable
diff --git a/docs/examples/metrics/views/change_aggregation.py b/docs/examples/metrics/views/change_aggregation.py
index 5dad07e64bf..3bdc33a4f97 100644
--- a/docs/examples/metrics/views/change_aggregation.py
+++ b/docs/examples/metrics/views/change_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/metrics/views/change_name.py b/docs/examples/metrics/views/change_name.py
index c70f7852a24..7d79457fdfd 100644
--- a/docs/examples/metrics/views/change_name.py
+++ b/docs/examples/metrics/views/change_name.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/metrics/views/change_reservoir_factory.py b/docs/examples/metrics/views/change_reservoir_factory.py
index 8f8c676d036..c95802e6965 100644
--- a/docs/examples/metrics/views/change_reservoir_factory.py
+++ b/docs/examples/metrics/views/change_reservoir_factory.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/metrics/views/disable_default_aggregation.py b/docs/examples/metrics/views/disable_default_aggregation.py
index 387bfc465d9..e0e5bad9cc8 100644
--- a/docs/examples/metrics/views/disable_default_aggregation.py
+++ b/docs/examples/metrics/views/disable_default_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/metrics/views/drop_metrics_from_instrument.py b/docs/examples/metrics/views/drop_metrics_from_instrument.py
index c8ca1008e54..fbefbc3c5aa 100644
--- a/docs/examples/metrics/views/drop_metrics_from_instrument.py
+++ b/docs/examples/metrics/views/drop_metrics_from_instrument.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/metrics/views/limit_num_of_attrs.py b/docs/examples/metrics/views/limit_num_of_attrs.py
index d9f0e9484c4..857cb379f23 100644
--- a/docs/examples/metrics/views/limit_num_of_attrs.py
+++ b/docs/examples/metrics/views/limit_num_of_attrs.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/docs/examples/opencensus-exporter-tracer/collector.py b/docs/examples/opencensus-exporter-tracer/collector.py
index cd33c89617b..f1d1025c404 100644
--- a/docs/examples/opencensus-exporter-tracer/collector.py
+++ b/docs/examples/opencensus-exporter-tracer/collector.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.exporter.opencensus.trace_exporter import (
diff --git a/docs/examples/opencensus-shim/app.py b/docs/examples/opencensus-shim/app.py
index d175ff80837..94932150211 100644
--- a/docs/examples/opencensus-shim/app.py
+++ b/docs/examples/opencensus-shim/app.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import sqlite3
 
diff --git a/docs/examples/opentracing/main.py b/docs/examples/opentracing/main.py
index f8a9c55cc51..3bbbb1b1a0c 100755
--- a/docs/examples/opentracing/main.py
+++ b/docs/examples/opentracing/main.py
@@ -1,4 +1,6 @@
 #!/usr/bin/env python
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 
 from rediscache import RedisCache
 
diff --git a/docs/examples/opentracing/rediscache.py b/docs/examples/opentracing/rediscache.py
index 61025eac725..107bdeb37a8 100644
--- a/docs/examples/opentracing/rediscache.py
+++ b/docs/examples/opentracing/rediscache.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 """
 This is an example of a library written to work with opentracing-python. It
 provides a simple caching decorator backed by Redis, and uses the OpenTracing
diff --git a/docs/examples/sqlcommenter/instrumented_query.py b/docs/examples/sqlcommenter/instrumented_query.py
index 1844b46a42c..6f7f06ced82 100644
--- a/docs/examples/sqlcommenter/instrumented_query.py
+++ b/docs/examples/sqlcommenter/instrumented_query.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from mysql.connector import connect
 
diff --git a/docs/getting_started/flask_example.py b/docs/getting_started/flask_example.py
index 3ddf61d15f5..62502faf089 100644
--- a/docs/getting_started/flask_example.py
+++ b/docs/getting_started/flask_example.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # flask_example.py
 import flask
diff --git a/docs/getting_started/metrics_example.py b/docs/getting_started/metrics_example.py
index 85df5cc14ed..adef34b29db 100644
--- a/docs/getting_started/metrics_example.py
+++ b/docs/getting_started/metrics_example.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # metrics.py
 # This is still work in progress as the metrics SDK is being implemented
diff --git a/docs/getting_started/otlpcollector_example.py b/docs/getting_started/otlpcollector_example.py
index 11b3b12d4b4..624558f56b8 100644
--- a/docs/getting_started/otlpcollector_example.py
+++ b/docs/getting_started/otlpcollector_example.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # otcollector.py
 
diff --git a/docs/getting_started/tests/__init__.py b/docs/getting_started/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/docs/getting_started/tests/__init__.py
+++ b/docs/getting_started/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/docs/getting_started/tests/test_flask.py b/docs/getting_started/tests/test_flask.py
index ffaa7deb213..79b97a68b55 100644
--- a/docs/getting_started/tests/test_flask.py
+++ b/docs/getting_started/tests/test_flask.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import os
 import subprocess
 import sys
diff --git a/docs/getting_started/tests/test_metrics.py b/docs/getting_started/tests/test_metrics.py
index 8a1c933dc07..7b156919693 100644
--- a/docs/getting_started/tests/test_metrics.py
+++ b/docs/getting_started/tests/test_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import json
 import os
diff --git a/docs/getting_started/tests/test_otlpcollector.py b/docs/getting_started/tests/test_otlpcollector.py
index c757d4a6743..1f2a4a5b39b 100644
--- a/docs/getting_started/tests/test_otlpcollector.py
+++ b/docs/getting_started/tests/test_otlpcollector.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # oltpcollector_example.py
 import os
diff --git a/docs/getting_started/tests/test_tracing.py b/docs/getting_started/tests/test_tracing.py
index 2ad571963b6..27f180a2566 100644
--- a/docs/getting_started/tests/test_tracing.py
+++ b/docs/getting_started/tests/test_tracing.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import os
 import subprocess
 import sys
diff --git a/docs/getting_started/tracing_example.py b/docs/getting_started/tracing_example.py
index 519e45f360a..574b8f3fe7c 100644
--- a/docs/getting_started/tracing_example.py
+++ b/docs/getting_started/tracing_example.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # tracing.py
 from opentelemetry import trace
diff --git a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/__init__.py b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/__init__.py
index ff8bb25be62..09643cfee18 100644
--- a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/__init__.py
+++ b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The **OpenCensus Exporter** allows to export traces using OpenCensus.
diff --git a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/trace_exporter/__init__.py b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/trace_exporter/__init__.py
index 0b79bbb2073..14cf8fcdc18 100644
--- a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/trace_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/trace_exporter/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """OpenCensus Span Exporter."""
 
diff --git a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/util.py b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/util.py
index 77eed6ffd17..bf071f2ae36 100644
--- a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/util.py
+++ b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/util.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from os import getpid
 from socket import gethostname
diff --git a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/version/__init__.py b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/version/__init__.py
+++ b/exporter/opentelemetry-exporter-opencensus/src/opentelemetry/exporter/opencensus/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/exporter/opentelemetry-exporter-opencensus/tests/test_otcollector_trace_exporter.py b/exporter/opentelemetry-exporter-opencensus/tests/test_otcollector_trace_exporter.py
index 75340da192c..077531ec9f8 100644
--- a/exporter/opentelemetry-exporter-opencensus/tests/test_otcollector_trace_exporter.py
+++ b/exporter/opentelemetry-exporter-opencensus/tests/test_otcollector_trace_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest import mock
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/__init__.py
index 2d336aee834..7ad07b196f1 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.exporter.otlp.proto.common.version import __version__
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_exporter_metrics.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_exporter_metrics.py
index 96d12a8857d..37ffece5079 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_exporter_metrics.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_exporter_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/__init__.py
index f1abcfc80af..1df0840be44 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from __future__ import annotations
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/_log_encoder/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/_log_encoder/__init__.py
index e04ee95fd38..6562ace7c14 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/_log_encoder/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/_log_encoder/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from collections import defaultdict
 from typing import List, Sequence
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/metrics_encoder/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/metrics_encoder/__init__.py
index 3ea2e26dcb9..37b1c196b3a 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/metrics_encoder/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/metrics_encoder/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import logging
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/trace_encoder/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/trace_encoder/__init__.py
index 388d229bab6..fe92277130d 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/trace_encoder/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_internal/trace_encoder/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 from collections import defaultdict
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_log_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_log_encoder.py
index f34ff8223c6..e55fa059673 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_log_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/_log_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.exporter.otlp.proto.common._internal._log_encoder import (
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/metrics_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/metrics_encoder.py
index 14f8fc3f0d1..be1c83a27b1 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/metrics_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/metrics_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.exporter.otlp.proto.common._internal.metrics_encoder import (
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/trace_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/trace_encoder.py
index 2af57652000..590ea7dfe13 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/trace_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/trace_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.exporter.otlp.proto.common._internal.trace_encoder import (
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/version/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/version/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_attribute_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_attribute_encoder.py
index 5ffa11de2d7..58ce2b337e4 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_attribute_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_attribute_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from logging import ERROR
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_log_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_log_encoder.py
index ef147274418..d4c3806ae9e 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_log_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_log_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from typing import List, Tuple
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_metrics_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_metrics_encoder.py
index d2ef292f93a..d3b3dc8c5cd 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_metrics_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_metrics_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,too-many-lines
 import unittest
diff --git a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_trace_encoder.py b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_trace_encoder.py
index bf78526d7e4..b22a57606e4 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_trace_encoder.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-common/tests/test_trace_encoder.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/benchmarks/test_benchmark_trace_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/benchmarks/test_benchmark_trace_exporter.py
index 9051dbeed0c..db583f69068 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/benchmarks/test_benchmark_trace_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/benchmarks/test_benchmark_trace_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=invalid-name
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/__init__.py
index 93972cc9af4..590d4b88fd3 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 """
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/_log_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/_log_exporter/__init__.py
index da40e9e9d58..ba93509625c 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/_log_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/_log_exporter/__init__.py
@@ -1,15 +1,5 @@
 # Copyright The OpenTelemetry Authors
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from os import environ
 from typing import Dict, Literal, Optional, Sequence, Tuple, Union
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
index 3627db70581..efd08664281 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """OTLP Exporter
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/metric_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/metric_exporter/__init__.py
index 1b2b1e5ae41..cc1a60a59d3 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/metric_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/metric_exporter/__init__.py
@@ -1,15 +1,5 @@
 # Copyright The OpenTelemetry Authors
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py
index 7d9dfd7625d..6f0cfa9a8c9 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py
@@ -1,15 +1,5 @@
 # Copyright The OpenTelemetry Authors
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """OTLP Span Exporter"""
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/version/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/version/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
index 64c6eb57714..5f501cd96eb 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_exporter_mixin.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_exporter_mixin.py
index 87bd72c5550..3938b74aa4e 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_exporter_mixin.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_exporter_mixin.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import threading
 import time
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
index 6799178b658..18f17bd328f 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 from logging import WARNING
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
index c05fc0565d3..64cd091a6c1 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/__init__.py
index 745a60424e7..69f51ec0557 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 """
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_common/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_common/__init__.py
index 1bdb7d228c2..5a32eed5f51 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_common/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_common/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from os import environ
 from typing import Literal, Optional
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_log_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_log_exporter/__init__.py
index 6032433dd12..1535496d2c2 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_log_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/_log_exporter/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import gzip
 import logging
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/metric_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/metric_exporter/__init__.py
index efd63b45438..bf369282348 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/metric_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/metric_exporter/__init__.py
@@ -1,15 +1,5 @@
 # Copyright The OpenTelemetry Authors
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import gzip
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py
index 018d89df1ee..1e51f8ebd36 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import gzip
 import logging
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/encoder/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/encoder/__init__.py
index aec46da1a24..ddf47669147 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/encoder/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/encoder/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging  # noqa: F401
 from collections import abc  # noqa: F401
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/version/__init__.py b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/version/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/tests/metrics/test_otlp_metrics_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-http/tests/metrics/test_otlp_metrics_exporter.py
index 5f7ae2afa9b..f63ae10ca50 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/tests/metrics/test_otlp_metrics_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/tests/metrics/test_otlp_metrics_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 import threading
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_log_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_log_exporter.py
index 7981b0bc821..55b76037293 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_log_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_log_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_span_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_span_exporter.py
index 0df471aa693..e1199551d4c 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_span_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-http/tests/test_proto_span_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import threading
 import time
diff --git a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/version/__init__.py b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/version/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-otlp/tests/test_otlp.py b/exporter/opentelemetry-exporter-otlp/tests/test_otlp.py
index 7e180022895..315f4279975 100644
--- a/exporter/opentelemetry-exporter-otlp/tests/test_otlp.py
+++ b/exporter/opentelemetry-exporter-otlp/tests/test_otlp.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.exporter.otlp.proto.grpc._log_exporter import (
diff --git a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/__init__.py b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/__init__.py
index 608d8f6d302..521f5dc39ac 100644
--- a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/__init__.py
+++ b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 This library allows export of metrics data to `Prometheus <https://prometheus.io/>`_.
diff --git a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/_mapping.py b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/_mapping.py
index 077d2fbb2b8..7822c69cc57 100644
--- a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/_mapping.py
+++ b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from re import UNICODE, compile
 
diff --git a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/version/__init__.py b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/version/__init__.py
+++ b/exporter/opentelemetry-exporter-prometheus/src/opentelemetry/exporter/prometheus/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/exporter/opentelemetry-exporter-prometheus/tests/__init__.py b/exporter/opentelemetry-exporter-prometheus/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/exporter/opentelemetry-exporter-prometheus/tests/__init__.py
+++ b/exporter/opentelemetry-exporter-prometheus/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/exporter/opentelemetry-exporter-prometheus/tests/test_entrypoints.py b/exporter/opentelemetry-exporter-prometheus/tests/test_entrypoints.py
index 96846e07595..d9aafd3fd27 100644
--- a/exporter/opentelemetry-exporter-prometheus/tests/test_entrypoints.py
+++ b/exporter/opentelemetry-exporter-prometheus/tests/test_entrypoints.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-self-use
 
diff --git a/exporter/opentelemetry-exporter-prometheus/tests/test_mapping.py b/exporter/opentelemetry-exporter-prometheus/tests/test_mapping.py
index f2641de17a7..0aef56f3b30 100644
--- a/exporter/opentelemetry-exporter-prometheus/tests/test_mapping.py
+++ b/exporter/opentelemetry-exporter-prometheus/tests/test_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/exporter/opentelemetry-exporter-prometheus/tests/test_prometheus_exporter.py b/exporter/opentelemetry-exporter-prometheus/tests/test_prometheus_exporter.py
index 26770c9e1f4..7a76fe514ca 100644
--- a/exporter/opentelemetry-exporter-prometheus/tests/test_prometheus_exporter.py
+++ b/exporter/opentelemetry-exporter-prometheus/tests/test_prometheus_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from textwrap import dedent
 from unittest import TestCase
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/encoder/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/encoder/__init__.py
index bb90daa37c2..e72f551b323 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/encoder/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/encoder/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Zipkin Exporter Transport Encoder
 
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/__init__.py
index ba313db942a..b16d9215403 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 OpenTelemetry Zipkin JSON Exporter
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v1/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v1/__init__.py
index c44a2dd0af2..cdd8ca6f249 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v1/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v1/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Zipkin Export Encoders for JSON formats"""
 
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v2/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v2/__init__.py
index 579087c4516..4f50c724386 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v2/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/v2/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Zipkin Export Encoders for JSON formats"""
 
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/version/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/version/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/json/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/node_endpoint.py b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/node_endpoint.py
index 67f5d0ad12f..4289799831e 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/node_endpoint.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/src/opentelemetry/exporter/zipkin/node_endpoint.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Zipkin Exporter Endpoints"""
 
diff --git a/exporter/opentelemetry-exporter-zipkin-json/tests/__init__.py b/exporter/opentelemetry-exporter-zipkin-json/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/tests/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/common_tests.py b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/common_tests.py
index ada00c7c8e6..8296b0dbad2 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/common_tests.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/common_tests.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import abc
 import unittest
 from typing import Dict, List
diff --git a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v1_json.py b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v1_json.py
index 7ff4e9b276e..1df059e2120 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v1_json.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v1_json.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import json
 
 from opentelemetry import trace as trace_api
diff --git a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v2_json.py b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v2_json.py
index 37a0414fcad..012562ed5af 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v2_json.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/tests/encoder/test_v2_json.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import json
 
 from opentelemetry import trace as trace_api
diff --git a/exporter/opentelemetry-exporter-zipkin-json/tests/test_zipkin_exporter.py b/exporter/opentelemetry-exporter-zipkin-json/tests/test_zipkin_exporter.py
index 77e3ef53755..c4d2b6b11d7 100644
--- a/exporter/opentelemetry-exporter-zipkin-json/tests/test_zipkin_exporter.py
+++ b/exporter/opentelemetry-exporter-zipkin-json/tests/test_zipkin_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import ipaddress
 import os
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/__init__.py b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/__init__.py
index dcb092c9cec..baa6a37a321 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 OpenTelemetry Zipkin Protobuf Exporter
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/v2/__init__.py b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/v2/__init__.py
index d7ca3b88d27..c9bcf3d5e24 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/v2/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/v2/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Zipkin Export Encoder for Protobuf
 
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/version/__init__.py b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/version/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/src/opentelemetry/exporter/zipkin/proto/http/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/__init__.py b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/common_tests.py b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/common_tests.py
index ada00c7c8e6..8296b0dbad2 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/common_tests.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/common_tests.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import abc
 import unittest
 from typing import Dict, List
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/test_v2_protobuf.py b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/test_v2_protobuf.py
index 2f2c894e4a7..256cc3e1529 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/test_v2_protobuf.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/encoder/test_v2_protobuf.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import ipaddress
 import json
 
diff --git a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/test_zipkin_exporter.py b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/test_zipkin_exporter.py
index 8a3c055437a..f2592fe2a84 100644
--- a/exporter/opentelemetry-exporter-zipkin-proto-http/tests/test_zipkin_exporter.py
+++ b/exporter/opentelemetry-exporter-zipkin-proto-http/tests/test_zipkin_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import ipaddress
 import os
diff --git a/exporter/opentelemetry-exporter-zipkin/src/opentelemetry/exporter/zipkin/version/__init__.py b/exporter/opentelemetry-exporter-zipkin/src/opentelemetry/exporter/zipkin/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/exporter/opentelemetry-exporter-zipkin/src/opentelemetry/exporter/zipkin/version/__init__.py
+++ b/exporter/opentelemetry-exporter-zipkin/src/opentelemetry/exporter/zipkin/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/exporter/opentelemetry-exporter-zipkin/tests/test_zipkin.py b/exporter/opentelemetry-exporter-zipkin/tests/test_zipkin.py
index d8231af21bb..6857d5e089c 100644
--- a/exporter/opentelemetry-exporter-zipkin/tests/test_zipkin.py
+++ b/exporter/opentelemetry-exporter-zipkin/tests/test_zipkin.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-api/src/opentelemetry/_events/__init__.py b/opentelemetry-api/src/opentelemetry/_events/__init__.py
index d86fd12721d..f5df0caebb0 100644
--- a/opentelemetry-api/src/opentelemetry/_events/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/_events/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from abc import ABC, abstractmethod
 from logging import getLogger
diff --git a/opentelemetry-api/src/opentelemetry/_logs/__init__.py b/opentelemetry-api/src/opentelemetry/_logs/__init__.py
index 6215da2eb53..1c4dfee1335 100644
--- a/opentelemetry-api/src/opentelemetry/_logs/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/_logs/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 The OpenTelemetry logging API describes the classes used to generate logs and events.
 
diff --git a/opentelemetry-api/src/opentelemetry/_logs/_internal/__init__.py b/opentelemetry-api/src/opentelemetry/_logs/_internal/__init__.py
index 12a8cc08f88..ed1a6543c91 100644
--- a/opentelemetry-api/src/opentelemetry/_logs/_internal/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/_logs/_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 The OpenTelemetry logging API describes the classes used to generate logs and events.
 
diff --git a/opentelemetry-api/src/opentelemetry/_logs/severity/__init__.py b/opentelemetry-api/src/opentelemetry/_logs/severity/__init__.py
index 8763d1ce52e..96ffcc6229e 100644
--- a/opentelemetry-api/src/opentelemetry/_logs/severity/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/_logs/severity/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import enum
 
diff --git a/opentelemetry-api/src/opentelemetry/attributes/__init__.py b/opentelemetry-api/src/opentelemetry/attributes/__init__.py
index e7799a69633..8754f847f25 100644
--- a/opentelemetry-api/src/opentelemetry/attributes/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/attributes/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import copy
 import logging
diff --git a/opentelemetry-api/src/opentelemetry/baggage/__init__.py b/opentelemetry-api/src/opentelemetry/baggage/__init__.py
index c8e34c1c45b..fdedab57ac9 100644
--- a/opentelemetry-api/src/opentelemetry/baggage/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/baggage/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 from re import compile
diff --git a/opentelemetry-api/src/opentelemetry/baggage/propagation/__init__.py b/opentelemetry-api/src/opentelemetry/baggage/propagation/__init__.py
index 43419ad2f77..ab68bf573f9 100644
--- a/opentelemetry-api/src/opentelemetry/baggage/propagation/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/baggage/propagation/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 from logging import getLogger
 from re import split
diff --git a/opentelemetry-api/src/opentelemetry/context/__init__.py b/opentelemetry-api/src/opentelemetry/context/__init__.py
index 9287d5b401e..c9ccd80e96f 100644
--- a/opentelemetry-api/src/opentelemetry/context/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/context/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-api/src/opentelemetry/context/context.py b/opentelemetry-api/src/opentelemetry/context/context.py
index c1ef9cfbb6b..0100b21f311 100644
--- a/opentelemetry-api/src/opentelemetry/context/context.py
+++ b/opentelemetry-api/src/opentelemetry/context/context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-api/src/opentelemetry/context/contextvars_context.py b/opentelemetry-api/src/opentelemetry/context/contextvars_context.py
index dceee263482..388329c7f6c 100644
--- a/opentelemetry-api/src/opentelemetry/context/contextvars_context.py
+++ b/opentelemetry-api/src/opentelemetry/context/contextvars_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-api/src/opentelemetry/environment_variables/__init__.py b/opentelemetry-api/src/opentelemetry/environment_variables/__init__.py
index bd8ed1cbfbb..00fe293b6ff 100644
--- a/opentelemetry-api/src/opentelemetry/environment_variables/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/environment_variables/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 OTEL_LOGS_EXPORTER = "OTEL_LOGS_EXPORTER"
 """
diff --git a/opentelemetry-api/src/opentelemetry/metrics/__init__.py b/opentelemetry-api/src/opentelemetry/metrics/__init__.py
index 74284ad6e3f..b39a3de15ff 100644
--- a/opentelemetry-api/src/opentelemetry/metrics/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/metrics/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The OpenTelemetry metrics API  describes the classes used to generate
diff --git a/opentelemetry-api/src/opentelemetry/metrics/_internal/__init__.py b/opentelemetry-api/src/opentelemetry/metrics/_internal/__init__.py
index 93658a7974e..1344c30d878 100644
--- a/opentelemetry-api/src/opentelemetry/metrics/_internal/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/metrics/_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-ancestors
 
diff --git a/opentelemetry-api/src/opentelemetry/metrics/_internal/instrument.py b/opentelemetry-api/src/opentelemetry/metrics/_internal/instrument.py
index cfd7a1526c6..9ab819f2997 100644
--- a/opentelemetry-api/src/opentelemetry/metrics/_internal/instrument.py
+++ b/opentelemetry-api/src/opentelemetry/metrics/_internal/instrument.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-ancestors
 
diff --git a/opentelemetry-api/src/opentelemetry/metrics/_internal/observation.py b/opentelemetry-api/src/opentelemetry/metrics/_internal/observation.py
index ffc254b20a4..608ac4fe79c 100644
--- a/opentelemetry-api/src/opentelemetry/metrics/_internal/observation.py
+++ b/opentelemetry-api/src/opentelemetry/metrics/_internal/observation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Optional, Union
 
diff --git a/opentelemetry-api/src/opentelemetry/propagate/__init__.py b/opentelemetry-api/src/opentelemetry/propagate/__init__.py
index 02381147f9b..fe6fa3aca7f 100644
--- a/opentelemetry-api/src/opentelemetry/propagate/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/propagate/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 API for propagation of context.
diff --git a/opentelemetry-api/src/opentelemetry/propagators/_envcarrier.py b/opentelemetry-api/src/opentelemetry/propagators/_envcarrier.py
index 0ea5f48bcdb..2bf83b7738e 100644
--- a/opentelemetry-api/src/opentelemetry/propagators/_envcarrier.py
+++ b/opentelemetry-api/src/opentelemetry/propagators/_envcarrier.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import os
 import typing
diff --git a/opentelemetry-api/src/opentelemetry/propagators/composite.py b/opentelemetry-api/src/opentelemetry/propagators/composite.py
index 08dddb03cd8..e56e38fe070 100644
--- a/opentelemetry-api/src/opentelemetry/propagators/composite.py
+++ b/opentelemetry-api/src/opentelemetry/propagators/composite.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import logging
 import typing
 
diff --git a/opentelemetry-api/src/opentelemetry/propagators/textmap.py b/opentelemetry-api/src/opentelemetry/propagators/textmap.py
index 42f1124f36d..db7d0f6655e 100644
--- a/opentelemetry-api/src/opentelemetry/propagators/textmap.py
+++ b/opentelemetry-api/src/opentelemetry/propagators/textmap.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import abc
 import typing
diff --git a/opentelemetry-api/src/opentelemetry/trace/__init__.py b/opentelemetry-api/src/opentelemetry/trace/__init__.py
index 7ec36a21533..5d8c30d38f9 100644
--- a/opentelemetry-api/src/opentelemetry/trace/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/trace/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The OpenTelemetry tracing API describes the classes used to generate
diff --git a/opentelemetry-api/src/opentelemetry/trace/propagation/__init__.py b/opentelemetry-api/src/opentelemetry/trace/propagation/__init__.py
index d3529e1779e..721320308d3 100644
--- a/opentelemetry-api/src/opentelemetry/trace/propagation/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/trace/propagation/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from typing import Optional
 
 from opentelemetry.context import create_key, get_value, set_value
diff --git a/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontext.py b/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontext.py
index af16a08f0be..1cf1945080b 100644
--- a/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontext.py
+++ b/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontext.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 import re
 import typing
diff --git a/opentelemetry-api/src/opentelemetry/trace/span.py b/opentelemetry-api/src/opentelemetry/trace/span.py
index b0cda475e2f..2ada3792824 100644
--- a/opentelemetry-api/src/opentelemetry/trace/span.py
+++ b/opentelemetry-api/src/opentelemetry/trace/span.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import abc
 import logging
 import re
diff --git a/opentelemetry-api/src/opentelemetry/trace/status.py b/opentelemetry-api/src/opentelemetry/trace/status.py
index ada7fa1ebda..e7023f5e6bf 100644
--- a/opentelemetry-api/src/opentelemetry/trace/status.py
+++ b/opentelemetry-api/src/opentelemetry/trace/status.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import enum
 import logging
diff --git a/opentelemetry-api/src/opentelemetry/util/_decorator.py b/opentelemetry-api/src/opentelemetry/util/_decorator.py
index b1a7f6c4259..5f7c26a7e31 100644
--- a/opentelemetry-api/src/opentelemetry/util/_decorator.py
+++ b/opentelemetry-api/src/opentelemetry/util/_decorator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import contextlib
 import functools
diff --git a/opentelemetry-api/src/opentelemetry/util/_importlib_metadata.py b/opentelemetry-api/src/opentelemetry/util/_importlib_metadata.py
index a527bd76fe1..9d4e98b2d37 100644
--- a/opentelemetry-api/src/opentelemetry/util/_importlib_metadata.py
+++ b/opentelemetry-api/src/opentelemetry/util/_importlib_metadata.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from functools import cache
 
diff --git a/opentelemetry-api/src/opentelemetry/util/_once.py b/opentelemetry-api/src/opentelemetry/util/_once.py
index c0cee43a174..a9b4dbb2cb2 100644
--- a/opentelemetry-api/src/opentelemetry/util/_once.py
+++ b/opentelemetry-api/src/opentelemetry/util/_once.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from threading import Lock
 from typing import Callable
diff --git a/opentelemetry-api/src/opentelemetry/util/_providers.py b/opentelemetry-api/src/opentelemetry/util/_providers.py
index b748eadfe0a..ac801ba3eba 100644
--- a/opentelemetry-api/src/opentelemetry/util/_providers.py
+++ b/opentelemetry-api/src/opentelemetry/util/_providers.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 from os import environ
diff --git a/opentelemetry-api/src/opentelemetry/util/re.py b/opentelemetry-api/src/opentelemetry/util/re.py
index 28ecd03d3ec..42a2577efd6 100644
--- a/opentelemetry-api/src/opentelemetry/util/re.py
+++ b/opentelemetry-api/src/opentelemetry/util/re.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 from re import compile, split
diff --git a/opentelemetry-api/src/opentelemetry/util/types.py b/opentelemetry-api/src/opentelemetry/util/types.py
index 7455c741c93..4234b9756d6 100644
--- a/opentelemetry-api/src/opentelemetry/util/types.py
+++ b/opentelemetry-api/src/opentelemetry/util/types.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Mapping, Optional, Sequence, Tuple, Union
 
diff --git a/opentelemetry-api/src/opentelemetry/version/__init__.py b/opentelemetry-api/src/opentelemetry/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/opentelemetry-api/src/opentelemetry/version/__init__.py
+++ b/opentelemetry-api/src/opentelemetry/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/opentelemetry-api/tests/__init__.py b/opentelemetry-api/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-api/tests/__init__.py
+++ b/opentelemetry-api/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-api/tests/attributes/test_attributes.py b/opentelemetry-api/tests/attributes/test_attributes.py
index ae3900ce9fa..2279318f645 100644
--- a/opentelemetry-api/tests/attributes/test_attributes.py
+++ b/opentelemetry-api/tests/attributes/test_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/baggage/propagation/test_propagation.py b/opentelemetry-api/tests/baggage/propagation/test_propagation.py
index b9de7f37b30..dca29ae14d7 100644
--- a/opentelemetry-api/tests/baggage/propagation/test_propagation.py
+++ b/opentelemetry-api/tests/baggage/propagation/test_propagation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 # type: ignore
 
diff --git a/opentelemetry-api/tests/baggage/test_baggage.py b/opentelemetry-api/tests/baggage/test_baggage.py
index 5eb73d53dc8..5ead8178f36 100644
--- a/opentelemetry-api/tests/baggage/test_baggage.py
+++ b/opentelemetry-api/tests/baggage/test_baggage.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/context/base_context.py b/opentelemetry-api/tests/context/base_context.py
index 395229b5208..45f32cf3fb8 100644
--- a/opentelemetry-api/tests/context/base_context.py
+++ b/opentelemetry-api/tests/context/base_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from logging import ERROR
diff --git a/opentelemetry-api/tests/context/test_context.py b/opentelemetry-api/tests/context/test_context.py
index 18f6f68a514..ce5327d8680 100644
--- a/opentelemetry-api/tests/context/test_context.py
+++ b/opentelemetry-api/tests/context/test_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest.mock import patch
diff --git a/opentelemetry-api/tests/context/test_contextvars_context.py b/opentelemetry-api/tests/context/test_contextvars_context.py
index e9af3107d84..5e3385bf381 100644
--- a/opentelemetry-api/tests/context/test_contextvars_context.py
+++ b/opentelemetry-api/tests/context/test_contextvars_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest.mock import patch
 
diff --git a/opentelemetry-api/tests/distributedcontext/__init__.py b/opentelemetry-api/tests/distributedcontext/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-api/tests/distributedcontext/__init__.py
+++ b/opentelemetry-api/tests/distributedcontext/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-api/tests/events/test_event.py b/opentelemetry-api/tests/events/test_event.py
index 227dcf5b1ff..03238a0e095 100644
--- a/opentelemetry-api/tests/events/test_event.py
+++ b/opentelemetry-api/tests/events/test_event.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import unittest
 
 from opentelemetry._events import Event
diff --git a/opentelemetry-api/tests/events/test_event_logger_provider.py b/opentelemetry-api/tests/events/test_event_logger_provider.py
index 425697bfa39..e9013b5b6b2 100644
--- a/opentelemetry-api/tests/events/test_event_logger_provider.py
+++ b/opentelemetry-api/tests/events/test_event_logger_provider.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # type:ignore
 import unittest
 from unittest.mock import Mock, patch
diff --git a/opentelemetry-api/tests/events/test_proxy_event.py b/opentelemetry-api/tests/events/test_proxy_event.py
index 44121a97d46..c6a8ad45ed7 100644
--- a/opentelemetry-api/tests/events/test_proxy_event.py
+++ b/opentelemetry-api/tests/events/test_proxy_event.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # pylint: disable=W0212,W0222,W0221
 import typing
 import unittest
diff --git a/opentelemetry-api/tests/logs/test_log_record.py b/opentelemetry-api/tests/logs/test_log_record.py
index da0f41e3b6b..2b6f893374c 100644
--- a/opentelemetry-api/tests/logs/test_log_record.py
+++ b/opentelemetry-api/tests/logs/test_log_record.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest.mock import patch
diff --git a/opentelemetry-api/tests/logs/test_logger_provider.py b/opentelemetry-api/tests/logs/test_logger_provider.py
index 2bd4041b66a..71ba26a41e3 100644
--- a/opentelemetry-api/tests/logs/test_logger_provider.py
+++ b/opentelemetry-api/tests/logs/test_logger_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type:ignore
 import unittest
diff --git a/opentelemetry-api/tests/logs/test_proxy.py b/opentelemetry-api/tests/logs/test_proxy.py
index 1b5d0c22ce1..dc3afedb33b 100644
--- a/opentelemetry-api/tests/logs/test_proxy.py
+++ b/opentelemetry-api/tests/logs/test_proxy.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=W0212,W0222,W0221
 import typing
diff --git a/opentelemetry-api/tests/metrics/test_instruments.py b/opentelemetry-api/tests/metrics/test_instruments.py
index 982cb6b6112..0f844b11050 100644
--- a/opentelemetry-api/tests/metrics/test_instruments.py
+++ b/opentelemetry-api/tests/metrics/test_instruments.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 from inspect import Signature, isabstract, signature
diff --git a/opentelemetry-api/tests/metrics/test_meter.py b/opentelemetry-api/tests/metrics/test_meter.py
index 5a7ef3bc8b2..b91004634db 100644
--- a/opentelemetry-api/tests/metrics/test_meter.py
+++ b/opentelemetry-api/tests/metrics/test_meter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 from logging import WARNING
diff --git a/opentelemetry-api/tests/metrics/test_meter_provider.py b/opentelemetry-api/tests/metrics/test_meter_provider.py
index dfaf94bcec2..3ea3e2041bc 100644
--- a/opentelemetry-api/tests/metrics/test_meter_provider.py
+++ b/opentelemetry-api/tests/metrics/test_meter_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 # pylint: disable=protected-access
diff --git a/opentelemetry-api/tests/metrics/test_observation.py b/opentelemetry-api/tests/metrics/test_observation.py
index a1a863fcd61..adc40d57dd8 100644
--- a/opentelemetry-api/tests/metrics/test_observation.py
+++ b/opentelemetry-api/tests/metrics/test_observation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-api/tests/metrics/test_subclass_instantiation.py b/opentelemetry-api/tests/metrics/test_subclass_instantiation.py
index 67001e8206b..812c59c3f55 100644
--- a/opentelemetry-api/tests/metrics/test_subclass_instantiation.py
+++ b/opentelemetry-api/tests/metrics/test_subclass_instantiation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 # NOTE: The tests in this file are intended to test the semver compatibility of the public API.
diff --git a/opentelemetry-api/tests/mypysmoke.py b/opentelemetry-api/tests/mypysmoke.py
index ede4af74e01..ce373f5f907 100644
--- a/opentelemetry-api/tests/mypysmoke.py
+++ b/opentelemetry-api/tests/mypysmoke.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import opentelemetry.trace
 
diff --git a/opentelemetry-api/tests/propagators/test__envcarrier.py b/opentelemetry-api/tests/propagators/test__envcarrier.py
index 3b020a39f4b..6636ee07eff 100644
--- a/opentelemetry-api/tests/propagators/test__envcarrier.py
+++ b/opentelemetry-api/tests/propagators/test__envcarrier.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/propagators/test_composite.py b/opentelemetry-api/tests/propagators/test_composite.py
index 14d1894153b..786a05ef0fa 100644
--- a/opentelemetry-api/tests/propagators/test_composite.py
+++ b/opentelemetry-api/tests/propagators/test_composite.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/propagators/test_global_httptextformat.py b/opentelemetry-api/tests/propagators/test_global_httptextformat.py
index c383ec6030b..2101894f881 100644
--- a/opentelemetry-api/tests/propagators/test_global_httptextformat.py
+++ b/opentelemetry-api/tests/propagators/test_global_httptextformat.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/propagators/test_propagators.py b/opentelemetry-api/tests/propagators/test_propagators.py
index 6215b99727a..a62f8c0d1aa 100644
--- a/opentelemetry-api/tests/propagators/test_propagators.py
+++ b/opentelemetry-api/tests/propagators/test_propagators.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/propagators/test_w3cbaggagepropagator.py b/opentelemetry-api/tests/propagators/test_w3cbaggagepropagator.py
index e85b6adf518..178da653c5b 100644
--- a/opentelemetry-api/tests/propagators/test_w3cbaggagepropagator.py
+++ b/opentelemetry-api/tests/propagators/test_w3cbaggagepropagator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 # type: ignore
 
diff --git a/opentelemetry-api/tests/test_implementation.py b/opentelemetry-api/tests/test_implementation.py
index 769f1ee8e03..1357e4a2423 100644
--- a/opentelemetry-api/tests/test_implementation.py
+++ b/opentelemetry-api/tests/test_implementation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-api/tests/trace/__init__.py b/opentelemetry-api/tests/trace/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-api/tests/trace/__init__.py
+++ b/opentelemetry-api/tests/trace/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-api/tests/trace/propagation/test_textmap.py b/opentelemetry-api/tests/trace/propagation/test_textmap.py
index 6b22d46f88e..0865e1fa5d1 100644
--- a/opentelemetry-api/tests/trace/propagation/test_textmap.py
+++ b/opentelemetry-api/tests/trace/propagation/test_textmap.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/trace/propagation/test_tracecontexthttptextformat.py b/opentelemetry-api/tests/trace/propagation/test_tracecontexthttptextformat.py
index 4ad9e89069d..f622c624284 100644
--- a/opentelemetry-api/tests/trace/propagation/test_tracecontexthttptextformat.py
+++ b/opentelemetry-api/tests/trace/propagation/test_tracecontexthttptextformat.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-api/tests/trace/test_defaultspan.py b/opentelemetry-api/tests/trace/test_defaultspan.py
index fbd3c00774c..af886b9281a 100644
--- a/opentelemetry-api/tests/trace/test_defaultspan.py
+++ b/opentelemetry-api/tests/trace/test_defaultspan.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-api/tests/trace/test_globals.py b/opentelemetry-api/tests/trace/test_globals.py
index 920ed4b7b7c..c572b02bd4a 100644
--- a/opentelemetry-api/tests/trace/test_globals.py
+++ b/opentelemetry-api/tests/trace/test_globals.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest.mock import Mock, patch
diff --git a/opentelemetry-api/tests/trace/test_immutablespancontext.py b/opentelemetry-api/tests/trace/test_immutablespancontext.py
index 7e98470e130..1b0bb98492a 100644
--- a/opentelemetry-api/tests/trace/test_immutablespancontext.py
+++ b/opentelemetry-api/tests/trace/test_immutablespancontext.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-api/tests/trace/test_proxy.py b/opentelemetry-api/tests/trace/test_proxy.py
index ad969e76617..6d16860538a 100644
--- a/opentelemetry-api/tests/trace/test_proxy.py
+++ b/opentelemetry-api/tests/trace/test_proxy.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=W0212,W0222,W0221
 import typing
diff --git a/opentelemetry-api/tests/trace/test_span_context.py b/opentelemetry-api/tests/trace/test_span_context.py
index 55abb0f5596..d7e75b14bc5 100644
--- a/opentelemetry-api/tests/trace/test_span_context.py
+++ b/opentelemetry-api/tests/trace/test_span_context.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import pickle
 import unittest
diff --git a/opentelemetry-api/tests/trace/test_status.py b/opentelemetry-api/tests/trace/test_status.py
index d7ea944e646..a203f026f2f 100644
--- a/opentelemetry-api/tests/trace/test_status.py
+++ b/opentelemetry-api/tests/trace/test_status.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from logging import WARNING
diff --git a/opentelemetry-api/tests/trace/test_tracer.py b/opentelemetry-api/tests/trace/test_tracer.py
index 632232e59ef..68bec0647de 100644
--- a/opentelemetry-api/tests/trace/test_tracer.py
+++ b/opentelemetry-api/tests/trace/test_tracer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 import asyncio
diff --git a/opentelemetry-api/tests/trace/test_tracestate.py b/opentelemetry-api/tests/trace/test_tracestate.py
index 625b260d548..555cef16bde 100644
--- a/opentelemetry-api/tests/trace/test_tracestate.py
+++ b/opentelemetry-api/tests/trace/test_tracestate.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # pylint: disable=no-member
 
 import unittest
diff --git a/opentelemetry-api/tests/util/test__importlib_metadata.py b/opentelemetry-api/tests/util/test__importlib_metadata.py
index 78551536fe7..67c97933f0d 100644
--- a/opentelemetry-api/tests/util/test__importlib_metadata.py
+++ b/opentelemetry-api/tests/util/test__importlib_metadata.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-api/tests/util/test__providers.py b/opentelemetry-api/tests/util/test__providers.py
index 8b2e46b7ec5..73deea30484 100644
--- a/opentelemetry-api/tests/util/test__providers.py
+++ b/opentelemetry-api/tests/util/test__providers.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from importlib import reload
 from os import environ
diff --git a/opentelemetry-api/tests/util/test_contextmanager.py b/opentelemetry-api/tests/util/test_contextmanager.py
index f26882c6c79..77003c848c2 100644
--- a/opentelemetry-api/tests/util/test_contextmanager.py
+++ b/opentelemetry-api/tests/util/test_contextmanager.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 import unittest
diff --git a/opentelemetry-api/tests/util/test_once.py b/opentelemetry-api/tests/util/test_once.py
index 97088f96a7f..d11ae5611a4 100644
--- a/opentelemetry-api/tests/util/test_once.py
+++ b/opentelemetry-api/tests/util/test_once.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.test.concurrency_test import ConcurrencyTestBase, MockFunc
 from opentelemetry.util._once import Once
diff --git a/opentelemetry-api/tests/util/test_re.py b/opentelemetry-api/tests/util/test_re.py
index 7c0a2a388e3..e8f48be5fbe 100644
--- a/opentelemetry-api/tests/util/test_re.py
+++ b/opentelemetry-api/tests/util/test_re.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/_json_codec.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/_json_codec.py
index da1f40b0484..c4a97026303 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/_json_codec.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/_json_codec.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/logs/v1/logs_service.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/logs/v1/logs_service.py
index c401f5df10a..c385c366083 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/logs/v1/logs_service.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/logs/v1/logs_service.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/collector/logs/v1/logs_service.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/metrics/v1/metrics_service.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/metrics/v1/metrics_service.py
index 8998770b8b2..6478bc0e470 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/metrics/v1/metrics_service.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/metrics/v1/metrics_service.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/collector/metrics/v1/metrics_service.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/profiles/v1development/profiles_service.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/profiles/v1development/profiles_service.py
index c857bbe4951..6382389aa4e 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/profiles/v1development/profiles_service.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/profiles/v1development/profiles_service.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/collector/profiles/v1development/profiles_service.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/trace/v1/trace_service.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/trace/v1/trace_service.py
index ac052077373..7e93f58b931 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/trace/v1/trace_service.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/collector/trace/v1/trace_service.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/collector/trace/v1/trace_service.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/common/v1/common.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/common/v1/common.py
index 6cfa446cf85..85d1e59b07a 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/common/v1/common.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/common/v1/common.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/common/v1/common.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/logs/v1/logs.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/logs/v1/logs.py
index 6aa761f41f3..3a0bdb19c12 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/logs/v1/logs.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/logs/v1/logs.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/logs/v1/logs.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/metrics/v1/metrics.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/metrics/v1/metrics.py
index c6f47c14658..02ebfd6c0d1 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/metrics/v1/metrics.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/metrics/v1/metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/metrics/v1/metrics.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/profiles/v1development/profiles.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/profiles/v1development/profiles.py
index 1d17974ddbe..a5411b0168b 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/profiles/v1development/profiles.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/profiles/v1development/profiles.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/profiles/v1development/profiles.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/resource/v1/resource.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/resource/v1/resource.py
index b05f2d330dc..664a42ef121 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/resource/v1/resource.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/resource/v1/resource.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/resource/v1/resource.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/trace/v1/trace.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/trace/v1/trace.py
index 643d7452715..5afa5a66ac9 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/trace/v1/trace.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/trace/v1/trace.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # AUTO-GENERATED from "opentelemetry/proto/trace/v1/trace.proto"
 # DO NOT EDIT MANUALLY
diff --git a/opentelemetry-proto-json/src/opentelemetry/proto_json/version/__init__.py b/opentelemetry-proto-json/src/opentelemetry/proto_json/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/opentelemetry-proto-json/src/opentelemetry/proto_json/version/__init__.py
+++ b/opentelemetry-proto-json/src/opentelemetry/proto_json/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/opentelemetry-proto-json/tests/test_proto.py b/opentelemetry-proto-json/tests/test_proto.py
index f99d4abfb07..15c4aa7e747 100644
--- a/opentelemetry-proto-json/tests/test_proto.py
+++ b/opentelemetry-proto-json/tests/test_proto.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 from importlib.util import find_spec
diff --git a/opentelemetry-proto/src/opentelemetry/proto/version/__init__.py b/opentelemetry-proto/src/opentelemetry/proto/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/opentelemetry-proto/src/opentelemetry/proto/version/__init__.py
+++ b/opentelemetry-proto/src/opentelemetry/proto/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/opentelemetry-proto/tests/test_proto.py b/opentelemetry-proto/tests/test_proto.py
index 5c041162437..2120c0a06a1 100644
--- a/opentelemetry-proto/tests/test_proto.py
+++ b/opentelemetry-proto/tests/test_proto.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 from importlib.util import find_spec
diff --git a/opentelemetry-sdk/benchmarks/logs/test_benchmark_logging_handler.py b/opentelemetry-sdk/benchmarks/logs/test_benchmark_logging_handler.py
index d1b9cf543c5..ca32619d8dc 100644
--- a/opentelemetry-sdk/benchmarks/logs/test_benchmark_logging_handler.py
+++ b/opentelemetry-sdk/benchmarks/logs/test_benchmark_logging_handler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 
diff --git a/opentelemetry-sdk/benchmarks/logs/test_benchmark_logs.py b/opentelemetry-sdk/benchmarks/logs/test_benchmark_logs.py
index f1578af58e3..73952bb4b68 100644
--- a/opentelemetry-sdk/benchmarks/logs/test_benchmark_logs.py
+++ b/opentelemetry-sdk/benchmarks/logs/test_benchmark_logs.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import pytest
 
diff --git a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics.py b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics.py
index 007481ae9ea..34317ce81b5 100644
--- a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics.py
+++ b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import pytest
 
 from opentelemetry.sdk.metrics import Counter, MeterProvider
diff --git a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram.py b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram.py
index 1c7cdf2cb5a..440a37fc2b8 100644
--- a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram.py
+++ b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=invalid-name
 import random
diff --git a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram_steady.py b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram_steady.py
index 163edcf97b9..70bea3e94e8 100644
--- a/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram_steady.py
+++ b/opentelemetry-sdk/benchmarks/metrics/test_benchmark_metrics_histogram_steady.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=invalid-name
 import itertools
diff --git a/opentelemetry-sdk/benchmarks/test_baggage.py b/opentelemetry-sdk/benchmarks/test_baggage.py
index 4ec331a5b8b..7d67fabc642 100644
--- a/opentelemetry-sdk/benchmarks/test_baggage.py
+++ b/opentelemetry-sdk/benchmarks/test_baggage.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # pylint: disable=redefined-outer-name, invalid-name
 import pytest
 
diff --git a/opentelemetry-sdk/benchmarks/trace/test_benchmark_trace.py b/opentelemetry-sdk/benchmarks/trace/test_benchmark_trace.py
index fb73e4fb6d9..3ab23e2c90a 100644
--- a/opentelemetry-sdk/benchmarks/trace/test_benchmark_trace.py
+++ b/opentelemetry-sdk/benchmarks/trace/test_benchmark_trace.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from functools import lru_cache
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/__init__.py
index 4c6b5330de7..ed3bd757d7e 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 
 """
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_common.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_common.py
index 5e4d569961f..e7e63c6d288 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_common.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_common.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_exceptions.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_exceptions.py
index 9b90dbd50a5..d85b3f85a68 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_exceptions.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_exceptions.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 class ConfigurationError(Exception):
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_logger_provider.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_logger_provider.py
index 61673238b72..7ab07badd03 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_logger_provider.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_logger_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_meter_provider.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_meter_provider.py
index 257351135f3..ee43ab09560 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_meter_provider.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_meter_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_propagator.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_propagator.py
index 315a4e8beda..44e931841ef 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_propagator.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_propagator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_resource.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_resource.py
index 13ef0a234a9..4a7cd25e3f6 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_resource.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_resource.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_tracer_provider.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_tracer_provider.py
index 32dfd96567b..2d83c4c9211 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_tracer_provider.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_tracer_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/__init__.py
index 1bc6de93f3c..cb1e9ec904f 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """OpenTelemetry SDK File Configuration.
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_env_substitution.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_env_substitution.py
index f12e1b0e28e..9d3a1b815aa 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_env_substitution.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_env_substitution.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Environment variable substitution for configuration files."""
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_loader.py b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_loader.py
index eeab3f2694d..c9e0e51cfa0 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_loader.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_configuration/file/_loader.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Configuration file loading and parsing."""
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_events/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_events/__init__.py
index ca90e9b1522..3d069ac84e8 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_events/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_events/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 from time import time_ns
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/__init__.py
index ec0b3dfb23e..37d47045c17 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk._logs._internal import (
     LogDroppedAttributesWarning,
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
index 956d9f28bd7..85833556307 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import abc
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_exceptions.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_exceptions.py
index 4f3fdabec41..f4805c7528e 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_exceptions.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_exceptions.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import traceback
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_logger_metrics.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_logger_metrics.py
index 92a4c76a450..1de221637ef 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_logger_metrics.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/_logger_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import metrics as metrics_api
 from opentelemetry.semconv._incubating.metrics.otel_metrics import (
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
index 1c0f82ac055..400829b6bd0 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import abc
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/in_memory_log_exporter.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/in_memory_log_exporter.py
index a724f81d89d..86a02288987 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/in_memory_log_exporter.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/in_memory_log_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import threading
 import typing
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/export/__init__.py
index 2edcf7e9e82..3925889bf6f 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/export/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk._logs._internal.export import (
     BatchLogRecordProcessor,
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/__init__.py
index cde19165d62..8d78ddf6e4b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/_processor_metrics.py b/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/_processor_metrics.py
index 47f90c28522..43c40bbe59e 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/_processor_metrics.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_shared_internal/_processor_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
index 2e5f350512b..ea8e8ab7720 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 OTEL_SDK_DISABLED = "OTEL_SDK_DISABLED"
 """
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/error_handler/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/error_handler/__init__.py
index d58c9003c7e..7506e8d5e49 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/error_handler/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/error_handler/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 Global Error Handler
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/__init__.py
index 4507c5e1f82..c40c740cc52 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.sdk.metrics import export, view
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/__init__.py
index e6583d1c5ff..1698318008b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import weakref
 from atexit import register, unregister
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/_view_instrument_match.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/_view_instrument_match.py
index 3cfa8b9c135..606f3714d05 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/_view_instrument_match.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/_view_instrument_match.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from logging import getLogger
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/aggregation.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/aggregation.py
index 4e6d72e7229..6e97f35763c 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/aggregation.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exceptions.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exceptions.py
index 0f8c3a75521..5ae8519eb9a 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exceptions.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exceptions.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 class MetricsTimeoutError(Exception):
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/__init__.py
index ee93dd18278..a00eb6ce5f0 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from .exemplar import Exemplar
 from .exemplar_filter import (
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar.py
index 28237f09c4b..a5d8579bd1b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import dataclasses
 from typing import Optional, Union
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py
index 8961d101efe..48c488023e6 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from abc import ABC, abstractmethod
 from typing import Union
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_reservoir.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_reservoir.py
index 22d1ee9f75e..7f219c34f59 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_reservoir.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_reservoir.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from abc import ABC, abstractmethod
 from collections import defaultdict
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/buckets.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/buckets.py
index d4401428be4..62d6edb4654 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/buckets.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/buckets.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from math import ceil, log2
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/__init__.py
index 5e5caeb0157..a62a2e6b0df 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from abc import ABC, abstractmethod
 from threading import Lock
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/errors.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/errors.py
index 477ed6f0f51..8bf64b28464 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/errors.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/errors.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 class MappingUnderflowError(Exception):
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/exponent_mapping.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/exponent_mapping.py
index ce8f8627bb1..e603d147f66 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/exponent_mapping.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/exponent_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from math import ldexp
 from threading import Lock
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/ieee_754.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/ieee_754.py
index d4b7e86148a..b1815c42561 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/ieee_754.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/ieee_754.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from ctypes import c_double, c_uint64
 from sys import float_info
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/logarithm_mapping.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/logarithm_mapping.py
index 980be890aef..2a3f6ca2fa1 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/logarithm_mapping.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/exponential_histogram/mapping/logarithm_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from math import exp, floor, ldexp, log
 from threading import Lock
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
index 66f327306a6..62e73f96b37 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import math
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/_metric_reader_metrics.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/_metric_reader_metrics.py
index 435d9c2da7b..17310b7115b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/_metric_reader_metrics.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/_metric_reader_metrics.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 from collections import Counter
 
 from opentelemetry.metrics import MeterProvider
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/instrument.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/instrument.py
index ecd1996d0a4..9cf2a588258 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/instrument.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/instrument.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-ancestors, unused-import
 from __future__ import annotations
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement.py
index 1d2137be802..61c8bca8c8c 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement_consumer.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement_consumer.py
index 4109e129566..f8ed81c48ee 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement_consumer.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/measurement_consumer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=unused-import
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/metric_reader_storage.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/metric_reader_storage.py
index 93c2ebcc61d..b43607ffd17 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/metric_reader_storage.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/metric_reader_storage.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import getLogger
 from threading import RLock
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/point.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/point.py
index 8c7e3469772..b7a11b33b3d 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/point.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/point.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=unused-import
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/sdk_configuration.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/sdk_configuration.py
index f5d176d0b02..b9368579dd7 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/sdk_configuration.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/sdk_configuration.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=unused-import
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/view.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/view.py
index ef0b04950b4..9dcd164fbf5 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/view.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/view.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from fnmatch import fnmatch
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/export/__init__.py
index 1b6d27e3e01..56034c0e35c 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/export/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from opentelemetry.sdk.metrics._internal.aggregation import (
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/view/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/view/__init__.py
index c07adf6cace..3aeb6642043 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/view/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/view/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk.metrics._internal.aggregation import (
     Aggregation,
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
index 9e3c194770f..4eb7f87ded8 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 This package implements `OpenTelemetry Resources
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/__init__.py
index 18fced70612..5ff90224a4a 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 import abc
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/__init__.py
index 4dc08da9798..e838448490a 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __all__ = [
     "ComposableSampler",
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_off.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_off.py
index eaafe164161..3e9ad3b7e5b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_off.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_off.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_on.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_on.py
index 88ac61c5d37..581a1b56095 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_on.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_always_on.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_composable.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_composable.py
index 5829601e30d..4a0d7fb7906 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_composable.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_composable.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_parent_threshold.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_parent_threshold.py
index 83b7b7d3005..2fb13ed3d12 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_parent_threshold.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_parent_threshold.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_rule_based.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_rule_based.py
index f03e3086527..c25f59fe88d 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_rule_based.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_rule_based.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_sampler.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_sampler.py
index 989cc36019d..f0ef1375508 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_sampler.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_sampler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_trace_state.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_trace_state.py
index bc06420f2a0..8816bcfbb10 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_trace_state.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_trace_state.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_traceid_ratio.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_traceid_ratio.py
index d63b6f8a8d7..e382630a2c0 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_traceid_ratio.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_traceid_ratio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_util.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_util.py
index 4e9fd7d2343..7a5598d445e 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_util.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_sampling_experimental/_util.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 RANDOM_VALUE_BITS = 56
 MAX_THRESHOLD = 1 << RANDOM_VALUE_BITS  # 0% sampling
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_tracer_metrics.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_tracer_metrics.py
index ad7de330c78..ed9b2267100 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/_tracer_metrics.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/_tracer_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py
index 8cf9c5e922d..a88af539bc4 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import annotations
 
 import logging
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/in_memory_span_exporter.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/in_memory_span_exporter.py
index c28ecfd214f..071d9f64585 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/in_memory_span_exporter.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/in_memory_span_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import threading
 import typing
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/id_generator.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/id_generator.py
index cd1f89bcde2..0e01ae6a8de 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/id_generator.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/id_generator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import abc
 import random
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/trace/sampling.py b/opentelemetry-sdk/src/opentelemetry/sdk/trace/sampling.py
index 68466eb1018..77dfcec2ba2 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/trace/sampling.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/trace/sampling.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 For general information about sampling, see `the specification <https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk.md#sampling>`_.
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/util/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/util/__init__.py
index 4adf4ed4599..a76a66f5cab 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/util/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/util/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import copy
 import datetime
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/util/_configurator.py b/opentelemetry-sdk/src/opentelemetry/sdk/util/_configurator.py
index c7c9e78c965..da9d65690f9 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/util/_configurator.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/util/_configurator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 from typing import Generic, Sequence, TypeVar
 
 from opentelemetry.sdk.util.instrumentation import (
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/util/instrumentation.py b/opentelemetry-sdk/src/opentelemetry/sdk/util/instrumentation.py
index fd8af277f58..d46701f7d8b 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/util/instrumentation.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/util/instrumentation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import fnmatch
 from json import dumps
 from typing import Callable, Optional
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/version/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/version/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/opentelemetry-sdk/tests/__init__.py b/opentelemetry-sdk/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/__init__.py
+++ b/opentelemetry-sdk/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/_configuration/__init__.py b/opentelemetry-sdk/tests/_configuration/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/_configuration/__init__.py
+++ b/opentelemetry-sdk/tests/_configuration/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/_configuration/file/__init__.py b/opentelemetry-sdk/tests/_configuration/file/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/_configuration/file/__init__.py
+++ b/opentelemetry-sdk/tests/_configuration/file/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/_configuration/file/test_env_substitution.py b/opentelemetry-sdk/tests/_configuration/file/test_env_substitution.py
index 3db60432c9a..fee46c91481 100644
--- a/opentelemetry-sdk/tests/_configuration/file/test_env_substitution.py
+++ b/opentelemetry-sdk/tests/_configuration/file/test_env_substitution.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import os
 import unittest
diff --git a/opentelemetry-sdk/tests/_configuration/file/test_loader.py b/opentelemetry-sdk/tests/_configuration/file/test_loader.py
index e6b0da6e6a4..b38f3010ac5 100644
--- a/opentelemetry-sdk/tests/_configuration/file/test_loader.py
+++ b/opentelemetry-sdk/tests/_configuration/file/test_loader.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import os
 import tempfile
diff --git a/opentelemetry-sdk/tests/_configuration/test_common.py b/opentelemetry-sdk/tests/_configuration/test_common.py
index e7ecb218aec..77db2ac628a 100644
--- a/opentelemetry-sdk/tests/_configuration/test_common.py
+++ b/opentelemetry-sdk/tests/_configuration/test_common.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import inspect
 import unittest
diff --git a/opentelemetry-sdk/tests/_configuration/test_logger_provider.py b/opentelemetry-sdk/tests/_configuration/test_logger_provider.py
index ff820d105ad..32d1f995ef5 100644
--- a/opentelemetry-sdk/tests/_configuration/test_logger_provider.py
+++ b/opentelemetry-sdk/tests/_configuration/test_logger_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # Tests access private members of SDK classes to assert correct configuration.
 # pylint: disable=protected-access
diff --git a/opentelemetry-sdk/tests/_configuration/test_meter_provider.py b/opentelemetry-sdk/tests/_configuration/test_meter_provider.py
index 04d60847f02..de153dd78bf 100644
--- a/opentelemetry-sdk/tests/_configuration/test_meter_provider.py
+++ b/opentelemetry-sdk/tests/_configuration/test_meter_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # Tests access private members of SDK classes to assert correct configuration.
 # pylint: disable=protected-access
diff --git a/opentelemetry-sdk/tests/_configuration/test_models.py b/opentelemetry-sdk/tests/_configuration/test_models.py
index 8a1fdfc9819..2daa8d71995 100644
--- a/opentelemetry-sdk/tests/_configuration/test_models.py
+++ b/opentelemetry-sdk/tests/_configuration/test_models.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-sdk/tests/_configuration/test_propagator.py b/opentelemetry-sdk/tests/_configuration/test_propagator.py
index d4aab75e744..bb60e3d8177 100644
--- a/opentelemetry-sdk/tests/_configuration/test_propagator.py
+++ b/opentelemetry-sdk/tests/_configuration/test_propagator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from os import environ
diff --git a/opentelemetry-sdk/tests/_configuration/test_resource.py b/opentelemetry-sdk/tests/_configuration/test_resource.py
index ad9dc0ef209..6736b4225f9 100644
--- a/opentelemetry-sdk/tests/_configuration/test_resource.py
+++ b/opentelemetry-sdk/tests/_configuration/test_resource.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import os
 import socket
diff --git a/opentelemetry-sdk/tests/_configuration/test_tracer_provider.py b/opentelemetry-sdk/tests/_configuration/test_tracer_provider.py
index 5caf077cd5e..493de1f47eb 100644
--- a/opentelemetry-sdk/tests/_configuration/test_tracer_provider.py
+++ b/opentelemetry-sdk/tests/_configuration/test_tracer_provider.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # Tests access private members of SDK classes to assert correct configuration.
 # pylint: disable=protected-access
diff --git a/opentelemetry-sdk/tests/conftest.py b/opentelemetry-sdk/tests/conftest.py
index b0b633982e0..ba173744228 100644
--- a/opentelemetry-sdk/tests/conftest.py
+++ b/opentelemetry-sdk/tests/conftest.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 from os import environ
diff --git a/opentelemetry-sdk/tests/context/test_asyncio.py b/opentelemetry-sdk/tests/context/test_asyncio.py
index 2c5b27a135b..778533ec5d3 100644
--- a/opentelemetry-sdk/tests/context/test_asyncio.py
+++ b/opentelemetry-sdk/tests/context/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 import unittest
diff --git a/opentelemetry-sdk/tests/error_handler/test_error_handler.py b/opentelemetry-sdk/tests/error_handler/test_error_handler.py
index b753c1c5970..fadd409d77c 100644
--- a/opentelemetry-sdk/tests/error_handler/test_error_handler.py
+++ b/opentelemetry-sdk/tests/error_handler/test_error_handler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from logging import ERROR
 from unittest import TestCase
diff --git a/opentelemetry-sdk/tests/events/__init__.py b/opentelemetry-sdk/tests/events/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/events/__init__.py
+++ b/opentelemetry-sdk/tests/events/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/events/test_events.py b/opentelemetry-sdk/tests/events/test_events.py
index df770109b8c..1fb9c3c5147 100644
--- a/opentelemetry-sdk/tests/events/test_events.py
+++ b/opentelemetry-sdk/tests/events/test_events.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,no-self-use
 
diff --git a/opentelemetry-sdk/tests/logs/__init__.py b/opentelemetry-sdk/tests/logs/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/logs/__init__.py
+++ b/opentelemetry-sdk/tests/logs/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/logs/test_export.py b/opentelemetry-sdk/tests/logs/test_export.py
index c36eeccfdc8..4efc84549fd 100644
--- a/opentelemetry-sdk/tests/logs/test_export.py
+++ b/opentelemetry-sdk/tests/logs/test_export.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 import logging
diff --git a/opentelemetry-sdk/tests/logs/test_handler.py b/opentelemetry-sdk/tests/logs/test_handler.py
index b3b8b47d16a..96fc316817e 100644
--- a/opentelemetry-sdk/tests/logs/test_handler.py
+++ b/opentelemetry-sdk/tests/logs/test_handler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 import os
diff --git a/opentelemetry-sdk/tests/logs/test_log_limits.py b/opentelemetry-sdk/tests/logs/test_log_limits.py
index 002639bf2ef..daaba3ad36b 100644
--- a/opentelemetry-sdk/tests/logs/test_log_limits.py
+++ b/opentelemetry-sdk/tests/logs/test_log_limits.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest.mock import patch
diff --git a/opentelemetry-sdk/tests/logs/test_log_record.py b/opentelemetry-sdk/tests/logs/test_log_record.py
index 3f9c4763018..89cb7b32dfc 100644
--- a/opentelemetry-sdk/tests/logs/test_log_record.py
+++ b/opentelemetry-sdk/tests/logs/test_log_record.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import json
 import unittest
diff --git a/opentelemetry-sdk/tests/logs/test_logger_provider_cache.py b/opentelemetry-sdk/tests/logs/test_logger_provider_cache.py
index 83f1bbb14a7..ee7c403cae5 100644
--- a/opentelemetry-sdk/tests/logs/test_logger_provider_cache.py
+++ b/opentelemetry-sdk/tests/logs/test_logger_provider_cache.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import logging
 import unittest
 
diff --git a/opentelemetry-sdk/tests/logs/test_logs.py b/opentelemetry-sdk/tests/logs/test_logs.py
index deb242f4a11..a47fe7233f7 100644
--- a/opentelemetry-sdk/tests/logs/test_logs.py
+++ b/opentelemetry-sdk/tests/logs/test_logs.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/logs/test_multi_log_processor.py b/opentelemetry-sdk/tests/logs/test_multi_log_processor.py
index 05fc0fe03d8..bdd9276cca1 100644
--- a/opentelemetry-sdk/tests/logs/test_multi_log_processor.py
+++ b/opentelemetry-sdk/tests/logs/test_multi_log_processor.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint:disable=protected-access,no-self-use,no-member
 
diff --git a/opentelemetry-sdk/tests/logs/test_sdk_metrics.py b/opentelemetry-sdk/tests/logs/test_sdk_metrics.py
index 5a0e18c4fb9..e2b9b8cbac1 100644
--- a/opentelemetry-sdk/tests/logs/test_sdk_metrics.py
+++ b/opentelemetry-sdk/tests/logs/test_sdk_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponent_mapping.py b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponent_mapping.py
index 0e3b0c7d9cc..91edf38e46f 100644
--- a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponent_mapping.py
+++ b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponent_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponential_bucket_histogram_aggregation.py b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponential_bucket_histogram_aggregation.py
index 820eb1070ab..fea16a7bc87 100644
--- a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponential_bucket_histogram_aggregation.py
+++ b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_exponential_bucket_histogram_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,too-many-lines,invalid-name
 # pylint: disable=consider-using-enumerate,no-self-use,too-many-public-methods
diff --git a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_logarithm_mapping.py b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_logarithm_mapping.py
index d8f9c4ae327..fc208d19b5f 100644
--- a/opentelemetry-sdk/tests/metrics/exponential_histogram/test_logarithm_mapping.py
+++ b/opentelemetry-sdk/tests/metrics/exponential_histogram/test_logarithm_mapping.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_console_exporter.py b/opentelemetry-sdk/tests/metrics/integration_test/test_console_exporter.py
index ca934b14ccf..a3b14e7dcf6 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_console_exporter.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_console_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from io import StringIO
 from json import loads
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_cpu_time.py b/opentelemetry-sdk/tests/metrics/integration_test/test_cpu_time.py
index 8b9483d8326..e4e947e83fc 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_cpu_time.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_cpu_time.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 import io
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_disable_default_views.py b/opentelemetry-sdk/tests/metrics/integration_test/test_disable_default_views.py
index d022456415b..7fcfd629bdb 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_disable_default_views.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_disable_default_views.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_exemplars.py b/opentelemetry-sdk/tests/metrics/integration_test/test_exemplars.py
index c4dabe9209a..859a1ec57c9 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_exemplars.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_exemplars.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import os
 from unittest import TestCase, mock
 
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_explicit_bucket_histogram_aggregation.py b/opentelemetry-sdk/tests/metrics/integration_test/test_explicit_bucket_histogram_aggregation.py
index 8aa2321cb47..857daa940bc 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_explicit_bucket_histogram_aggregation.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_explicit_bucket_histogram_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from platform import system
 from time import sleep
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_exponential_bucket_histogram.py b/opentelemetry-sdk/tests/metrics/integration_test/test_exponential_bucket_histogram.py
index 2e066e102da..7da23dea759 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_exponential_bucket_histogram.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_exponential_bucket_histogram.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from platform import system
 from time import sleep
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_exporter_concurrency.py b/opentelemetry-sdk/tests/metrics/integration_test/test_exporter_concurrency.py
index bbc67eac309..43d225b4e0d 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_exporter_concurrency.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_exporter_concurrency.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import time
 from threading import Lock
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_advisory_explicit_buckets.py b/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_advisory_explicit_buckets.py
index 569d7fd1c2c..80888751bc8 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_advisory_explicit_buckets.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_advisory_explicit_buckets.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_export.py b/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_export.py
index 303ad187f91..541be174364 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_export.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_histogram_export.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_provider_shutdown.py b/opentelemetry-sdk/tests/metrics/integration_test/test_provider_shutdown.py
index 1f4a16d7f69..642f621fe9a 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_provider_shutdown.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_provider_shutdown.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import gc
 import time
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_sum_aggregation.py b/opentelemetry-sdk/tests/metrics/integration_test/test_sum_aggregation.py
index 61371416508..a8badf2cd66 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_sum_aggregation.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_sum_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from itertools import count
 from logging import ERROR
diff --git a/opentelemetry-sdk/tests/metrics/integration_test/test_time_align.py b/opentelemetry-sdk/tests/metrics/integration_test/test_time_align.py
index b04056f4a1a..88567eafd4e 100644
--- a/opentelemetry-sdk/tests/metrics/integration_test/test_time_align.py
+++ b/opentelemetry-sdk/tests/metrics/integration_test/test_time_align.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from platform import system
 from time import sleep
diff --git a/opentelemetry-sdk/tests/metrics/test_aggregation.py b/opentelemetry-sdk/tests/metrics/test_aggregation.py
index bacaf350793..333fdd090b3 100644
--- a/opentelemetry-sdk/tests/metrics/test_aggregation.py
+++ b/opentelemetry-sdk/tests/metrics/test_aggregation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/test_backward_compat.py b/opentelemetry-sdk/tests/metrics/test_backward_compat.py
index 90e885c3099..835031c6e19 100644
--- a/opentelemetry-sdk/tests/metrics/test_backward_compat.py
+++ b/opentelemetry-sdk/tests/metrics/test_backward_compat.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The purpose of this test is to test for backward compatibility with any user-implementable
diff --git a/opentelemetry-sdk/tests/metrics/test_exemplarfilter.py b/opentelemetry-sdk/tests/metrics/test_exemplarfilter.py
index daca0e60618..5c6b5839e1f 100644
--- a/opentelemetry-sdk/tests/metrics/test_exemplarfilter.py
+++ b/opentelemetry-sdk/tests/metrics/test_exemplarfilter.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 from unittest import TestCase
 
 from opentelemetry import trace
diff --git a/opentelemetry-sdk/tests/metrics/test_exemplarreservoir.py b/opentelemetry-sdk/tests/metrics/test_exemplarreservoir.py
index bdc25d1f6e7..9c5bf69bdb3 100644
--- a/opentelemetry-sdk/tests/metrics/test_exemplarreservoir.py
+++ b/opentelemetry-sdk/tests/metrics/test_exemplarreservoir.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 from time import time_ns
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/test_import.py b/opentelemetry-sdk/tests/metrics/test_import.py
index 4e18a777749..83cbd8b3c1c 100644
--- a/opentelemetry-sdk/tests/metrics/test_import.py
+++ b/opentelemetry-sdk/tests/metrics/test_import.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=unused-import,import-outside-toplevel,too-many-locals
 
diff --git a/opentelemetry-sdk/tests/metrics/test_in_memory_metric_reader.py b/opentelemetry-sdk/tests/metrics/test_in_memory_metric_reader.py
index ff2b7436978..b4fb0eb2de5 100644
--- a/opentelemetry-sdk/tests/metrics/test_in_memory_metric_reader.py
+++ b/opentelemetry-sdk/tests/metrics/test_in_memory_metric_reader.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/test_instrument.py b/opentelemetry-sdk/tests/metrics/test_instrument.py
index 4bd10e3fe7f..c5375e37835 100644
--- a/opentelemetry-sdk/tests/metrics/test_instrument.py
+++ b/opentelemetry-sdk/tests/metrics/test_instrument.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=no-self-use
 
diff --git a/opentelemetry-sdk/tests/metrics/test_measurement_consumer.py b/opentelemetry-sdk/tests/metrics/test_measurement_consumer.py
index a9c3d434fdb..9f67271a086 100644
--- a/opentelemetry-sdk/tests/metrics/test_measurement_consumer.py
+++ b/opentelemetry-sdk/tests/metrics/test_measurement_consumer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=invalid-name,no-self-use
 
diff --git a/opentelemetry-sdk/tests/metrics/test_metric_reader.py b/opentelemetry-sdk/tests/metrics/test_metric_reader.py
index 2f7aad25c6e..2f6d6c1b7b5 100644
--- a/opentelemetry-sdk/tests/metrics/test_metric_reader.py
+++ b/opentelemetry-sdk/tests/metrics/test_metric_reader.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/test_metric_reader_storage.py b/opentelemetry-sdk/tests/metrics/test_metric_reader_storage.py
index ca81df2dac1..ec70ff11455 100644
--- a/opentelemetry-sdk/tests/metrics/test_metric_reader_storage.py
+++ b/opentelemetry-sdk/tests/metrics/test_metric_reader_storage.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,invalid-name
 
diff --git a/opentelemetry-sdk/tests/metrics/test_metrics.py b/opentelemetry-sdk/tests/metrics/test_metrics.py
index d2f475faa00..89573734ddd 100644
--- a/opentelemetry-sdk/tests/metrics/test_metrics.py
+++ b/opentelemetry-sdk/tests/metrics/test_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,no-self-use,too-many-lines
 
diff --git a/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py b/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
index 3e47e577689..41226647558 100644
--- a/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
+++ b/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access,invalid-name,no-self-use
 
diff --git a/opentelemetry-sdk/tests/metrics/test_point.py b/opentelemetry-sdk/tests/metrics/test_point.py
index c5a4def85de..18fa05c151d 100644
--- a/opentelemetry-sdk/tests/metrics/test_point.py
+++ b/opentelemetry-sdk/tests/metrics/test_point.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/metrics/test_view.py b/opentelemetry-sdk/tests/metrics/test_view.py
index ee5df52a7b9..03914c99c6f 100644
--- a/opentelemetry-sdk/tests/metrics/test_view.py
+++ b/opentelemetry-sdk/tests/metrics/test_view.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 
diff --git a/opentelemetry-sdk/tests/metrics/test_view_instrument_match.py b/opentelemetry-sdk/tests/metrics/test_view_instrument_match.py
index 38d36758f39..718bd45c1dd 100644
--- a/opentelemetry-sdk/tests/metrics/test_view_instrument_match.py
+++ b/opentelemetry-sdk/tests/metrics/test_view_instrument_match.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 from __future__ import annotations
diff --git a/opentelemetry-sdk/tests/resources/test_resources.py b/opentelemetry-sdk/tests/resources/test_resources.py
index 19f066a8ac1..d75ad4b97d8 100644
--- a/opentelemetry-sdk/tests/resources/test_resources.py
+++ b/opentelemetry-sdk/tests/resources/test_resources.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 import os
 import sys
 import unittest
diff --git a/opentelemetry-sdk/tests/shared_internal/__init__.py b/opentelemetry-sdk/tests/shared_internal/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/shared_internal/__init__.py
+++ b/opentelemetry-sdk/tests/shared_internal/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/shared_internal/test_batch_processor.py b/opentelemetry-sdk/tests/shared_internal/test_batch_processor.py
index f5ed15110b9..02337757073 100644
--- a/opentelemetry-sdk/tests/shared_internal/test_batch_processor.py
+++ b/opentelemetry-sdk/tests/shared_internal/test_batch_processor.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=protected-access
 import gc
diff --git a/opentelemetry-sdk/tests/test_configurator.py b/opentelemetry-sdk/tests/test_configurator.py
index 17a2b85bae8..0d3587f23c2 100644
--- a/opentelemetry-sdk/tests/test_configurator.py
+++ b/opentelemetry-sdk/tests/test_configurator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 # pylint: skip-file
diff --git a/opentelemetry-sdk/tests/test_util.py b/opentelemetry-sdk/tests/test_util.py
index cd255d5992b..1b7e81e1ee6 100644
--- a/opentelemetry-sdk/tests/test_util.py
+++ b/opentelemetry-sdk/tests/test_util.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import copy
 import unittest
diff --git a/opentelemetry-sdk/tests/trace/__init__.py b/opentelemetry-sdk/tests/trace/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/trace/__init__.py
+++ b/opentelemetry-sdk/tests/trace/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_always_off.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_always_off.py
index 0a03344f883..0b5fe34b37a 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_always_off.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_always_off.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk.trace._sampling_experimental import (
     composable_always_off,
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_always_on.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_always_on.py
index a787b221a46..9b9673adc67 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_always_on.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_always_on.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk.trace._sampling_experimental import (
     composable_always_on,
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_rule_based.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_rule_based.py
index f2b7cdd2367..a6bc11c2983 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_rule_based.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_rule_based.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.sdk.trace._sampling_experimental import (
     composable_always_off,
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_sampler.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_sampler.py
index 4bd45fd45c1..967defa4e33 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_sampler.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_sampler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import annotations
 
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_traceid_ratio.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_traceid_ratio.py
index ad0dc1f4912..b092fbd8159 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_traceid_ratio.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_traceid_ratio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import pytest
 
diff --git a/opentelemetry-sdk/tests/trace/composite_sampler/test_tracestate.py b/opentelemetry-sdk/tests/trace/composite_sampler/test_tracestate.py
index 0af527cf3a3..3fe09b871b8 100644
--- a/opentelemetry-sdk/tests/trace/composite_sampler/test_tracestate.py
+++ b/opentelemetry-sdk/tests/trace/composite_sampler/test_tracestate.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import pytest
 
diff --git a/opentelemetry-sdk/tests/trace/export/__init__.py b/opentelemetry-sdk/tests/trace/export/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/opentelemetry-sdk/tests/trace/export/__init__.py
+++ b/opentelemetry-sdk/tests/trace/export/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/opentelemetry-sdk/tests/trace/export/test_export.py b/opentelemetry-sdk/tests/trace/export/test_export.py
index 2d1321df81b..34a9d9a9fd4 100644
--- a/opentelemetry-sdk/tests/trace/export/test_export.py
+++ b/opentelemetry-sdk/tests/trace/export/test_export.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 import os
diff --git a/opentelemetry-sdk/tests/trace/export/test_in_memory_span_exporter.py b/opentelemetry-sdk/tests/trace/export/test_in_memory_span_exporter.py
index eb366728c0b..7f30f70dd97 100644
--- a/opentelemetry-sdk/tests/trace/export/test_in_memory_span_exporter.py
+++ b/opentelemetry-sdk/tests/trace/export/test_in_memory_span_exporter.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from unittest import mock
diff --git a/opentelemetry-sdk/tests/trace/test_globals.py b/opentelemetry-sdk/tests/trace/test_globals.py
index ab57ff018ab..28accb745aa 100644
--- a/opentelemetry-sdk/tests/trace/test_globals.py
+++ b/opentelemetry-sdk/tests/trace/test_globals.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # type:ignore
 import unittest
 from logging import WARNING
diff --git a/opentelemetry-sdk/tests/trace/test_implementation.py b/opentelemetry-sdk/tests/trace/test_implementation.py
index 961e68d9869..e7fc51a3ed9 100644
--- a/opentelemetry-sdk/tests/trace/test_implementation.py
+++ b/opentelemetry-sdk/tests/trace/test_implementation.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/opentelemetry-sdk/tests/trace/test_sampling.py b/opentelemetry-sdk/tests/trace/test_sampling.py
index 09057ee1c15..482d52e1f4b 100644
--- a/opentelemetry-sdk/tests/trace/test_sampling.py
+++ b/opentelemetry-sdk/tests/trace/test_sampling.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import contextlib
 import sys
diff --git a/opentelemetry-sdk/tests/trace/test_sdk_metrics.py b/opentelemetry-sdk/tests/trace/test_sdk_metrics.py
index 2baa967f8ad..9b86c5e31e3 100644
--- a/opentelemetry-sdk/tests/trace/test_sdk_metrics.py
+++ b/opentelemetry-sdk/tests/trace/test_sdk_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest import TestCase
 
diff --git a/opentelemetry-sdk/tests/trace/test_span_processor.py b/opentelemetry-sdk/tests/trace/test_span_processor.py
index c751ab96d9f..00106d29cd8 100644
--- a/opentelemetry-sdk/tests/trace/test_span_processor.py
+++ b/opentelemetry-sdk/tests/trace/test_span_processor.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import abc
 import gc
diff --git a/opentelemetry-sdk/tests/trace/test_trace.py b/opentelemetry-sdk/tests/trace/test_trace.py
index 2c6fdf3f929..e2c40adac89 100644
--- a/opentelemetry-sdk/tests/trace/test_trace.py
+++ b/opentelemetry-sdk/tests/trace/test_trace.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 # pylint: disable=no-member
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/app_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/app_attributes.py
index 6500e67802b..a833a5f9e42 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/app_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/app_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/artifact_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/artifact_attributes.py
index 4f062343e9d..7b2afcdb718 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/artifact_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/artifact_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/aws_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/aws_attributes.py
index da42769ae0c..2ed042b387d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/aws_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/aws_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/az_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/az_attributes.py
index 7e3813b35dd..7595d9aa750 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/az_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/az_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/azure_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/azure_attributes.py
index d0ec046aba7..9aad1bd5143 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/azure_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/azure_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/browser_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/browser_attributes.py
index 7cb14085c35..3bf59e36cd0 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/browser_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/browser_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cassandra_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cassandra_attributes.py
index 96aae6dc144..5084407eff9 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cassandra_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cassandra_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cicd_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cicd_attributes.py
index af012bbd0f1..b1c50d93c1c 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cicd_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cicd_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/client_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/client_attributes.py
index a6511e76721..b68dea7203f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/client_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/client_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloud_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloud_attributes.py
index 983a8042652..6191a215474 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloud_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloud_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudevents_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudevents_attributes.py
index ca13ee99421..fe3226a594d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudevents_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudevents_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudfoundry_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudfoundry_attributes.py
index 31b2d85a654..c1747b0d350 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudfoundry_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cloudfoundry_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/code_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/code_attributes.py
index e033b1f965b..130aebc2c4d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/code_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/code_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/container_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/container_attributes.py
index 1ecacdd96d1..3ccaebd3be8 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/container_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/container_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpu_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpu_attributes.py
index e550c569eed..4cc8bd4725a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpu_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpu_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpython_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpython_attributes.py
index 1f6659a7973..90ef20560af 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpython_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/cpython_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/db_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/db_attributes.py
index e6d5335795f..39097bce1bb 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/db_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/db_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/deployment_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/deployment_attributes.py
index 1461a891cc6..bb1461075f4 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/deployment_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/deployment_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/destination_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/destination_attributes.py
index 8fa4949c661..b9269b7a4a6 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/destination_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/destination_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/device_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/device_attributes.py
index 4af3f95ba81..87dcaaa0b2d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/device_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/device_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/disk_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/disk_attributes.py
index e100f1af928..1e08f412073 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/disk_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/disk_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/dns_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/dns_attributes.py
index bcb744cb968..83def12b52f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/dns_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/dns_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/elasticsearch_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/elasticsearch_attributes.py
index 242437428e5..86748754ada 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/elasticsearch_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/elasticsearch_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/enduser_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/enduser_attributes.py
index 6813a00a700..121a2c0ce26 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/enduser_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/enduser_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/error_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/error_attributes.py
index c06ebd26d0d..53e2212d776 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/error_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/error_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/event_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/event_attributes.py
index 8db935d76b0..05f481bbb3e 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/event_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/event_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/exception_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/exception_attributes.py
index 37e22148dbe..efec9363f22 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/exception_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/exception_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/faas_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/faas_attributes.py
index 98ab0a49344..21a0b6f91ea 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/faas_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/faas_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/feature_flag_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/feature_flag_attributes.py
index 3ee2e63ccf5..f6a79f0e42d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/feature_flag_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/feature_flag_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/file_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/file_attributes.py
index 97ac01e1185..625c8e74ffb 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/file_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/file_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gcp_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gcp_attributes.py
index b1bd47289f8..74396ff87e3 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gcp_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gcp_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gen_ai_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gen_ai_attributes.py
index c7d734cd47a..111cf19a988 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gen_ai_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/gen_ai_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/geo_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/geo_attributes.py
index 573e52384d9..a32cfdda069 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/geo_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/geo_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/graphql_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/graphql_attributes.py
index c467771710f..51a6c6a3b81 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/graphql_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/graphql_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/heroku_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/heroku_attributes.py
index 83ba66b1939..2de0654dc65 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/heroku_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/heroku_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/host_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/host_attributes.py
index 72847e6571a..b0ad4d9b24e 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/host_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/host_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/http_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/http_attributes.py
index 13491c0d63a..7b27c36d48d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/http_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/http_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/hw_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/hw_attributes.py
index d16f1579421..967b6fbffe8 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/hw_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/hw_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/jsonrpc_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/jsonrpc_attributes.py
index d3ae2eed8a4..fcea8239f93 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/jsonrpc_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/jsonrpc_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/k8s_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/k8s_attributes.py
index 5a3ddfe17bd..488f368f2c2 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/k8s_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/k8s_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/linux_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/linux_attributes.py
index 0e669403d94..2c651cbed22 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/linux_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/linux_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/log_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/log_attributes.py
index cd1fbbc36c8..f50c910c557 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/log_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/log_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mainframe_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mainframe_attributes.py
index 96df4803c10..bfa8d1969f3 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mainframe_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mainframe_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mcp_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mcp_attributes.py
index beaa714f90e..7474aeabea4 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mcp_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/mcp_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/message_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/message_attributes.py
index 6ec83f30d9f..31741dce2c9 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/message_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/message_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/messaging_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/messaging_attributes.py
index 8791bc8f237..032638f8f85 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/messaging_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/messaging_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/net_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/net_attributes.py
index 3488d0ea802..7c34ac3d997 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/net_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/net_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/network_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/network_attributes.py
index f9bf30bca77..15c456e0a9f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/network_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/network_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/nfs_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/nfs_attributes.py
index aed898343c5..3ef1dd50117 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/nfs_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/nfs_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oci_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oci_attributes.py
index ba721dffeed..c3342c0fec1 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oci_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oci_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/onc_rpc_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/onc_rpc_attributes.py
index d8dd4dbb0c4..eecf84ceae5 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/onc_rpc_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/onc_rpc_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openai_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openai_attributes.py
index 2460e4f332c..5e2cb46e7bb 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openai_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openai_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openshift_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openshift_attributes.py
index 4a9afc808b4..db1abf01285 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openshift_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/openshift_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/opentracing_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/opentracing_attributes.py
index 0c1ae08807d..5237de935fe 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/opentracing_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/opentracing_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_attributes.py
index 911c3c8dc14..766ef30f2dc 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_cloud_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_cloud_attributes.py
index e094b766264..a829590b83f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_cloud_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/oracle_cloud_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/os_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/os_attributes.py
index cebfe19eab3..df490b2c7d7 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/os_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/os_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/otel_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/otel_attributes.py
index d6c872e04f6..abca4dafb0b 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/otel_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/otel_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/other_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/other_attributes.py
index 45157019617..754dd8e0077 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/other_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/other_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/peer_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/peer_attributes.py
index 495523c74eb..27ff455a696 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/peer_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/peer_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pool_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pool_attributes.py
index 6e0d70fad87..cd3fa908184 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pool_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pool_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pprof_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pprof_attributes.py
index c2d95a7f78c..b651a1eea14 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pprof_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/pprof_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/process_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/process_attributes.py
index 8212e8c1d4f..1b427d81c05 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/process_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/process_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/profile_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/profile_attributes.py
index 21c5dc15622..974a06994fc 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/profile_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/profile_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/rpc_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/rpc_attributes.py
index 9656eaef904..e05dd09e27d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/rpc_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/rpc_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/security_rule_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/security_rule_attributes.py
index f6fbd0e34c7..fa4ec427244 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/security_rule_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/security_rule_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/server_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/server_attributes.py
index a9e3ab43fa6..865dcde6b08 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/server_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/server_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/service_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/service_attributes.py
index 36ce043915f..eb2dcd6e8a2 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/service_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/service_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/session_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/session_attributes.py
index 1d5ff3406f2..573591d95e8 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/session_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/session_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/source_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/source_attributes.py
index ea49387f3c6..abd1ae22c0f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/source_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/source_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/system_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/system_attributes.py
index 578d93da60b..0f822cff2ed 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/system_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/system_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/telemetry_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/telemetry_attributes.py
index cd5df9b0d9b..3080999ccf3 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/telemetry_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/telemetry_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/test_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/test_attributes.py
index 201c9bd8764..4a3ef390d88 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/test_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/test_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/thread_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/thread_attributes.py
index fcf6831d0d8..29c41435fd5 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/thread_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/thread_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/tls_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/tls_attributes.py
index fa2b9169267..7ade1e1c3d3 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/tls_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/tls_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/url_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/url_attributes.py
index 57d1de86bba..8ed5ee4e27e 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/url_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/url_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_agent_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_agent_attributes.py
index 4974aab8f3c..bccceba3cba 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_agent_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_agent_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_attributes.py
index 4d3e8a2816a..91d0dbccada 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/user_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/vcs_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/vcs_attributes.py
index 8b7426f1cbb..0180d06c89a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/vcs_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/vcs_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/webengine_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/webengine_attributes.py
index 15175428d3d..0d0bf87feae 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/webengine_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/webengine_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/zos_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/zos_attributes.py
index 195177f0256..3c6571076ff 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/zos_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/attributes/zos_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/azure_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/azure_metrics.py
index 2273ac80c02..80fa43fabe4 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/azure_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/azure_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cicd_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cicd_metrics.py
index 53fbfacafbe..dd888ca67b0 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cicd_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cicd_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/container_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/container_metrics.py
index 2d97d035b7a..e47e7d806fa 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/container_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/container_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpu_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpu_metrics.py
index aa06d8a390e..9b8219a460a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpu_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpu_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpython_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpython_metrics.py
index 2c480f5e64e..64670af9132 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpython_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/cpython_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/db_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/db_metrics.py
index 4df9d1e5720..020360dcb8b 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/db_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/db_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/dns_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/dns_metrics.py
index 53fb3d26982..1ff3bdf635a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/dns_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/dns_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/faas_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/faas_metrics.py
index 8d64c8227a4..894e778eddd 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/faas_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/faas_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/gen_ai_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/gen_ai_metrics.py
index 7a7afa33888..a50689d8965 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/gen_ai_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/gen_ai_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/http_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/http_metrics.py
index 86d0317e3b4..4ea719845ff 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/http_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/http_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/hw_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/hw_metrics.py
index be5c9291e24..5b0e31be425 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/hw_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/hw_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/k8s_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/k8s_metrics.py
index 4117efc7ae7..235c1104962 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/k8s_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/k8s_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/mcp_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/mcp_metrics.py
index 345735c4728..1c8834c4fb8 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/mcp_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/mcp_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/messaging_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/messaging_metrics.py
index 32023a78044..d36713512a2 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/messaging_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/messaging_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/nfs_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/nfs_metrics.py
index e23b049ed9f..a3b7091e4de 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/nfs_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/nfs_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/openshift_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/openshift_metrics.py
index 08f6343e73f..b0f70ea5a20 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/openshift_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/openshift_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/otel_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/otel_metrics.py
index a3f24d219f5..199308d47b1 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/otel_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/otel_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/process_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/process_metrics.py
index 72a4020d267..51e77d8f75f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/process_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/process_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/rpc_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/rpc_metrics.py
index bf852749511..47d1f5d8d7e 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/rpc_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/rpc_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/system_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/system_metrics.py
index 132068d2eb6..1b72437dab3 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/system_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/system_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/vcs_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/vcs_metrics.py
index fd4bad38097..28b8f1fa81f 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/vcs_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/_incubating/metrics/vcs_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from collections.abc import Callable, Generator, Iterable, Sequence
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/client_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/client_attributes.py
index d6dd88bfaf2..98ebcdd94ff 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/client_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/client_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/code_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/code_attributes.py
index 8a33c1ae2da..370a4dcdfa7 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/code_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/code_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/db_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/db_attributes.py
index 2653f54ade4..e64d17832e2 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/db_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/db_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/error_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/error_attributes.py
index 13ef66e75a2..ce801050741 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/error_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/error_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/exception_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/exception_attributes.py
index 1c4374e70e1..17e5ad97df8 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/exception_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/exception_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/http_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/http_attributes.py
index 4d688aa2a22..5dbad619dd5 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/http_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/http_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/network_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/network_attributes.py
index c09fe2e0c6f..67e399e456c 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/network_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/network_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/otel_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/otel_attributes.py
index 134e246e042..d87b4085bf5 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/otel_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/otel_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/server_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/server_attributes.py
index 6b2658dac3f..a67312e0f60 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/server_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/server_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/service_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/service_attributes.py
index e8b5da8dc11..cf15e071515 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/service_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/service_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/telemetry_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/telemetry_attributes.py
index 29aadeb72ba..0402e5a373b 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/telemetry_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/telemetry_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/url_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/url_attributes.py
index 0d8d9cbb92d..60970e01179 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/url_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/url_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/user_agent_attributes.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/user_agent_attributes.py
index af5002ef34e..6d7e44f2a8d 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/user_agent_attributes.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/attributes/user_agent_attributes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing import Final
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/__init__.py
index db53aad7c21..736c6b4659e 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from typing_extensions import deprecated
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/db_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/db_metrics.py
index 13c9e50a4ef..60317281ddc 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/db_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/db_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/http_metrics.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/http_metrics.py
index d0e0db65013..924d41d9860 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/http_metrics.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/metrics/http_metrics.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Final
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
index 6e4adfeb10c..59c2fd5b02a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/schemas.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/schemas.py
index edfb939fd3a..a82d6b08952 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/schemas.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/schemas.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from enum import Enum
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
index c03ca556a29..ceb562d811a 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # pylint: disable=too-many-lines
 
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/version/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/version/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/opentelemetry-semantic-conventions/tests/test_semconv.py b/opentelemetry-semantic-conventions/tests/test_semconv.py
index 18fe3f045cb..1594d61e47c 100644
--- a/opentelemetry-semantic-conventions/tests/test_semconv.py
+++ b/opentelemetry-semantic-conventions/tests/test_semconv.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 # type: ignore
 
 from importlib.util import find_spec
diff --git a/propagator/opentelemetry-propagator-b3/benchmarks/trace/propagation/test_benchmark_b3_format.py b/propagator/opentelemetry-propagator-b3/benchmarks/trace/propagation/test_benchmark_b3_format.py
index 26fdb650f27..d5ecbe742c0 100644
--- a/propagator/opentelemetry-propagator-b3/benchmarks/trace/propagation/test_benchmark_b3_format.py
+++ b/propagator/opentelemetry-propagator-b3/benchmarks/trace/propagation/test_benchmark_b3_format.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import opentelemetry.propagators.b3 as b3_format
 from opentelemetry.sdk.trace import TracerProvider
diff --git a/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/__init__.py b/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/__init__.py
index 9bcce9b7c0e..f6c45ef1ca0 100644
--- a/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/__init__.py
+++ b/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import typing
 from re import compile as re_compile
diff --git a/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/version/__init__.py b/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/version/__init__.py
+++ b/propagator/opentelemetry-propagator-b3/src/opentelemetry/propagators/b3/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/propagator/opentelemetry-propagator-b3/tests/__init__.py b/propagator/opentelemetry-propagator-b3/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/propagator/opentelemetry-propagator-b3/tests/__init__.py
+++ b/propagator/opentelemetry-propagator-b3/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/propagator/opentelemetry-propagator-b3/tests/test_b3_format.py b/propagator/opentelemetry-propagator-b3/tests/test_b3_format.py
index 6625712e33e..172ba2b4ad2 100644
--- a/propagator/opentelemetry-propagator-b3/tests/test_b3_format.py
+++ b/propagator/opentelemetry-propagator-b3/tests/test_b3_format.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 from abc import abstractmethod
diff --git a/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/__init__.py b/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/__init__.py
index 6b6eb8fbf05..069f751a82b 100644
--- a/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/__init__.py
+++ b/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import typing
 import urllib.parse
diff --git a/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/version/__init__.py b/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/version/__init__.py
index 6016b503ebf..6c7080466f8 100644
--- a/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/version/__init__.py
+++ b/propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "1.42.0.dev"
diff --git a/propagator/opentelemetry-propagator-jaeger/tests/__init__.py b/propagator/opentelemetry-propagator-jaeger/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/propagator/opentelemetry-propagator-jaeger/tests/__init__.py
+++ b/propagator/opentelemetry-propagator-jaeger/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/propagator/opentelemetry-propagator-jaeger/tests/test_jaeger_propagator.py b/propagator/opentelemetry-propagator-jaeger/tests/test_jaeger_propagator.py
index 8e7519b0f1b..481b56b9196 100644
--- a/propagator/opentelemetry-propagator-jaeger/tests/test_jaeger_propagator.py
+++ b/propagator/opentelemetry-propagator-jaeger/tests/test_jaeger_propagator.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from unittest.mock import Mock
 
diff --git a/scripts/add_required_checks.py b/scripts/add_required_checks.py
index ee7d38dbc6c..9c0db3c6a93 100644
--- a/scripts/add_required_checks.py
+++ b/scripts/add_required_checks.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 # This script is to be used by maintainers by running it locally.
 
 from json import dumps
diff --git a/scripts/check_for_valid_readme.py b/scripts/check_for_valid_readme.py
index d133ae3d3cb..4b1e11fe1ab 100644
--- a/scripts/check_for_valid_readme.py
+++ b/scripts/check_for_valid_readme.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 """Test script to check given paths for valid README.rst files."""
 
 import argparse
diff --git a/scripts/check_license_header.py b/scripts/check_license_header.py
new file mode 100644
index 00000000000..8a2f03ae9ed
--- /dev/null
+++ b/scripts/check_license_header.py
@@ -0,0 +1,102 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
+import os
+import sys
+from pathlib import Path
+
+EXPECTED_LINES = (
+    "# Copyright The OpenTelemetry Authors\n",
+    "# SPDX-License-Identifier: Apache-2.0\n",
+)
+
+SKIP_SUFFIXES = (
+    "_pb2.py",
+    "_pb2_grpc.py",
+)
+
+SKIP_DIRS = (
+    "target",
+    ".tox",
+    ".venv",
+    "__pycache__",
+    "node_modules",
+)
+
+GENERATED_MARKERS = (
+    "# generated by datamodel-codegen",
+    "# Generated by the protocol buffer compiler",
+    "# Generated by the gRPC Python protocol compiler",
+)
+
+
+def should_skip(relpath):
+    parts = relpath.split(os.sep)
+    if any(d in parts for d in SKIP_DIRS):
+        return True
+    basename = os.path.basename(relpath)
+    return any(basename.endswith(s) for s in SKIP_SUFFIXES)
+
+
+def check_file(path):
+    with open(path) as f:
+        lines = f.readlines()
+
+    # Skip empty files (e.g. namespace __init__.py)
+    if not lines or all(line.strip() == "" for line in lines):
+        return True
+
+    # Skip generated files
+    if any(lines[0].startswith(m) for m in GENERATED_MARKERS):
+        return True
+
+    # If file starts with a shebang, check lines after it
+    start = 0
+    if lines[0].startswith("#!"):
+        start = 1
+        # Skip optional blank line after shebang
+        if start < len(lines) and lines[start].strip() == "":
+            start += 1
+
+    if len(lines) < start + 2:
+        return False
+
+    return (
+        lines[start] == EXPECTED_LINES[0]
+        and lines[start + 1] == EXPECTED_LINES[1]
+    )
+
+
+def main():
+    root = str(Path(__file__).resolve().parents[1])
+    failures = []
+
+    for dirpath, dirnames, filenames in os.walk(root):
+        dirnames[:] = [d for d in dirnames if not d.startswith(".")]
+
+        for filename in filenames:
+            if not filename.endswith(".py"):
+                continue
+            path = os.path.join(dirpath, filename)
+            relpath = os.path.relpath(path, root)
+            if should_skip(relpath):
+                continue
+            if not check_file(path):
+                failures.append(relpath)
+
+    if failures:
+        print("Files missing the SPDX license header:")
+        print()
+        print("  Expected first two lines:")
+        print("    # Copyright The OpenTelemetry Authors")
+        print("    # SPDX-License-Identifier: Apache-2.0")
+        print()
+        for f in sorted(failures):
+            print(f"  {f}")
+        sys.exit(1)
+
+    print("All files have the correct license header.")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/eachdist.py b/scripts/eachdist.py
index b01d0733657..c5f5e9880c7 100755
--- a/scripts/eachdist.py
+++ b/scripts/eachdist.py
@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 
 import argparse
 import os
diff --git a/scripts/griffe_check.py b/scripts/griffe_check.py
index e30b82da5b7..db24dec0cc6 100644
--- a/scripts/griffe_check.py
+++ b/scripts/griffe_check.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import argparse
 import sys
 
diff --git a/scripts/public_symbols_checker.py b/scripts/public_symbols_checker.py
index 538e29a20f6..1066fc30f39 100644
--- a/scripts/public_symbols_checker.py
+++ b/scripts/public_symbols_checker.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from collections import defaultdict
 from difflib import unified_diff
diff --git a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/__init__.py b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/__init__.py
index bd49fd19876..4d2eb190224 100644
--- a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/__init__.py
+++ b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The OpenTelemetry OpenCensus shim is a library which allows an easy migration from OpenCensus
diff --git a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_patch.py b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_patch.py
index 71d09486616..5c3c4d2fae8 100644
--- a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_patch.py
+++ b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_patch.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from functools import lru_cache
 from logging import getLogger
diff --git a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_span.py b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_span.py
index 2012035247a..c8602b0512f 100644
--- a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_span.py
+++ b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_span.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 from datetime import datetime
diff --git a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_tracer.py b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_tracer.py
index 35386d4f468..b7bc55f491e 100644
--- a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_tracer.py
+++ b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/_shim_tracer.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 
diff --git a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/version/__init__.py b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/version/__init__.py
+++ b/shim/opentelemetry-opencensus-shim/src/opentelemetry/shim/opencensus/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/shim/opentelemetry-opencensus-shim/tests/test_patch.py b/shim/opentelemetry-opencensus-shim/tests/test_patch.py
index 697ddfc3520..ae5d9b218fa 100644
--- a/shim/opentelemetry-opencensus-shim/tests/test_patch.py
+++ b/shim/opentelemetry-opencensus-shim/tests/test_patch.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/shim/opentelemetry-opencensus-shim/tests/test_shim.py b/shim/opentelemetry-opencensus-shim/tests/test_shim.py
index 74a9eddcf2f..ef0ddc20afe 100644
--- a/shim/opentelemetry-opencensus-shim/tests/test_shim.py
+++ b/shim/opentelemetry-opencensus-shim/tests/test_shim.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 import unittest
diff --git a/shim/opentelemetry-opencensus-shim/tests/test_shim_with_sdk.py b/shim/opentelemetry-opencensus-shim/tests/test_shim_with_sdk.py
index db993d4c223..2f116f4cafb 100644
--- a/shim/opentelemetry-opencensus-shim/tests/test_shim_with_sdk.py
+++ b/shim/opentelemetry-opencensus-shim/tests/test_shim_with_sdk.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 import unittest
diff --git a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/__init__.py b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/__init__.py
index 45251e6b241..81bfdb7ab84 100644
--- a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/__init__.py
+++ b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """
 The OpenTelemetry OpenTracing shim is a library which allows an easy migration
diff --git a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/util.py b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/util.py
index eb7d3d9acaa..a144d4b5fa0 100644
--- a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/util.py
+++ b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/util.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # A default event name to be used for logging events when a better event name
 # can't be derived from the event's key-value pairs.
diff --git a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/version/__init__.py b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/version/__init__.py
index a07bc2663e4..716ad67f7d6 100644
--- a/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/version/__init__.py
+++ b/shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/version/__init__.py
@@ -1,15 +1,4 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 __version__ = "0.63b0.dev"
diff --git a/shim/opentelemetry-opentracing-shim/tests/test_shim.py b/shim/opentelemetry-opentracing-shim/tests/test_shim.py
index 796a4e064b1..1687b0d1033 100644
--- a/shim/opentelemetry-opentracing-shim/tests/test_shim.py
+++ b/shim/opentelemetry-opentracing-shim/tests/test_shim.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # TODO: make pylint use 3p opentracing module for type inference
 # pylint:disable=no-member
diff --git a/shim/opentelemetry-opentracing-shim/tests/test_util.py b/shim/opentelemetry-opentracing-shim/tests/test_util.py
index c8f7571e77d..f29d88c9166 100644
--- a/shim/opentelemetry-opentracing-shim/tests/test_util.py
+++ b/shim/opentelemetry-opentracing-shim/tests/test_util.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from time import time, time_ns
 from unittest import TestCase
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/otel_ot_shim_tracer.py b/shim/opentelemetry-opentracing-shim/tests/testbed/otel_ot_shim_tracer.py
index 6c0a9045717..5e85f8af878 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/otel_ot_shim_tracer.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/otel_ot_shim_tracer.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import opentelemetry.shim.opentracing_shim as opentracingshim
 from opentelemetry.sdk import trace
 from opentelemetry.sdk.trace.export import SimpleSpanProcessor
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_asyncio.py
index f658d2b65ca..9bdc666a307 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_threads.py
index d088de5b9a3..aa7f46e554c 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_active_span_replacement/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from concurrent.futures import (  # pylint: disable=no-name-in-module
     ThreadPoolExecutor,
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_asyncio.py
index ddf7626078a..349c61d0082 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_threads.py
index 6fa5974d791..8f6e795eae0 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_client_server/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from queue import Queue
 from threading import Thread
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/request_handler.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/request_handler.py
index b48a5dbc68b..23153ed4d71 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/request_handler.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/request_handler.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentracing.ext import tags
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_asyncio.py
index 33ee4360db1..271ac3ce02e 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_threads.py
index 0b62b177148..b729139f155 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_common_request_handler/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from concurrent.futures import (  # pylint: disable=no-name-in-module
     ThreadPoolExecutor,
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_asyncio.py
index 2b3ff1608ce..52d3e1b6fd8 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_threads.py
index 35edf0457da..31272cad235 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_late_span_finish/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import time
 from concurrent.futures import (  # pylint: disable=no-name-in-module
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/response_listener.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/response_listener.py
index dd143c20b8e..ca91b714a9b 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/response_listener.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/response_listener.py
@@ -1,3 +1,7 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
+
 class ResponseListener:
     def __init__(self, span):
         self.span = span
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_asyncio.py
index d279358d44b..ef526241304 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_threads.py
index 498b7d9fcaa..d9cab6dbc46 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_listener_per_request/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from concurrent.futures import (  # pylint: disable=no-name-in-module
     ThreadPoolExecutor,
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_asyncio.py
index 66f795891e7..22be53d2c78 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 import random
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_threads.py
index c4b9967e88a..a348b4558bb 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_multiple_callbacks/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import random
 import time
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_asyncio.py
index 9b08a7d4be6..d70d8824f3b 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_threads.py
index 634641f8afe..b117a3aa93b 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_nested_callbacks/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from concurrent.futures import (  # pylint: disable=no-name-in-module
     ThreadPoolExecutor,
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_asyncio.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_asyncio.py
index 9f3cf83645b..38bf77d5dd5 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_asyncio.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_asyncio.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_threads.py b/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_threads.py
index 8f719a2a446..c00692d2763 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_threads.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/test_subtask_span_propagation/test_threads.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from concurrent.futures import (  # pylint: disable=no-name-in-module
     ThreadPoolExecutor,
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/testcase.py b/shim/opentelemetry-opentracing-shim/tests/testbed/testcase.py
index 3c16682fad3..9ed63fa5b23 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/testcase.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/testcase.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import unittest
 
 import opentelemetry.trace as trace_api
diff --git a/shim/opentelemetry-opentracing-shim/tests/testbed/utils.py b/shim/opentelemetry-opentracing-shim/tests/testbed/utils.py
index 88cc4838b89..a55361feeb8 100644
--- a/shim/opentelemetry-opentracing-shim/tests/testbed/utils.py
+++ b/shim/opentelemetry-opentracing-shim/tests/testbed/utils.py
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 import logging
 import threading
 import time
diff --git a/tests/opentelemetry-docker-tests/tests/opencensus/test_opencensusexporter_functional.py b/tests/opentelemetry-docker-tests/tests/opencensus/test_opencensusexporter_functional.py
index a3c1ee20303..3e3a8eefb86 100644
--- a/tests/opentelemetry-docker-tests/tests/opencensus/test_opencensusexporter_functional.py
+++ b/tests/opentelemetry-docker-tests/tests/opencensus/test_opencensusexporter_functional.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.context import attach, detach, set_value
diff --git a/tests/opentelemetry-docker-tests/tests/otlpexporter/__init__.py b/tests/opentelemetry-docker-tests/tests/otlpexporter/__init__.py
index d4340fb9105..f939bc8bf8b 100644
--- a/tests/opentelemetry-docker-tests/tests/otlpexporter/__init__.py
+++ b/tests/opentelemetry-docker-tests/tests/otlpexporter/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from abc import ABC, abstractmethod
 
diff --git a/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_grpc_exporter_functional.py b/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_grpc_exporter_functional.py
index d48b3053960..170cf95aa13 100644
--- a/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_grpc_exporter_functional.py
+++ b/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_grpc_exporter_functional.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import (
diff --git a/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_http_exporter_functional.py b/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_http_exporter_functional.py
index 59a333dec64..128be8e9451 100644
--- a/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_http_exporter_functional.py
+++ b/tests/opentelemetry-docker-tests/tests/otlpexporter/test_otlp_http_exporter_functional.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry import trace
 from opentelemetry.exporter.otlp.proto.http.trace_exporter import (
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/__init__.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/__init__.py
index 84188864bfe..b3de9dfe37a 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/__init__.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/__init__.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # type: ignore
 
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/asgitestutil.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/asgitestutil.py
index ab0215d5ad4..6b680aca5a4 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/asgitestutil.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/asgitestutil.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import asyncio
 from unittest import IsolatedAsyncioTestCase
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/concurrency_test.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/concurrency_test.py
index 5d178e24fff..3d7f781b594 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/concurrency_test.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/concurrency_test.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import sys
 import threading
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/globals_test.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/globals_test.py
index aead8362a8b..e1cf713146d 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/globals_test.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/globals_test.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import unittest
 
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/httptest.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/httptest.py
index 84591ca0f19..5f42a36637a 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/httptest.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/httptest.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import re
 import unittest
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/metrictestutil.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/metrictestutil.py
index 33f1039ef87..e2e003b6bba 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/metrictestutil.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/metrictestutil.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 from typing import Optional
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_test_classes.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_test_classes.py
index 5e7fc521d24..680c223ab6c 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_test_classes.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_test_classes.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 
 class IterEntryPoint:
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_textmap.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_textmap.py
index c3e901ee287..937bcb441fe 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_textmap.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/mock_textmap.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import typing
 
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/spantestutil.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/spantestutil.py
index 912de9ee031..24dace2fc03 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/spantestutil.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/spantestutil.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from functools import partial
 
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/test_base.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/test_base.py
index 0ec7d594ca5..ef4399f2df2 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/test_base.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/test_base.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import logging
 import unittest
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/version/__init__.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/version/__init__.py
index 7f6e0949122..716ad67f7d6 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/version/__init__.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/version/__init__.py
@@ -1 +1,4 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 __version__ = "0.63b0.dev"
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/weaver_live_check.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/weaver_live_check.py
index 451587578e4..1ee34a093e0 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/weaver_live_check.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/weaver_live_check.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import functools
 import json
diff --git a/tests/opentelemetry-test-utils/src/opentelemetry/test/wsgitestutil.py b/tests/opentelemetry-test-utils/src/opentelemetry/test/wsgitestutil.py
index 908b1d41847..9f14641efdc 100644
--- a/tests/opentelemetry-test-utils/src/opentelemetry/test/wsgitestutil.py
+++ b/tests/opentelemetry-test-utils/src/opentelemetry/test/wsgitestutil.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 import io
 import wsgiref.util as wsgiref_util
diff --git a/tests/opentelemetry-test-utils/tests/__init__.py b/tests/opentelemetry-test-utils/tests/__init__.py
index b0a6f428417..e57cf4aba95 100644
--- a/tests/opentelemetry-test-utils/tests/__init__.py
+++ b/tests/opentelemetry-test-utils/tests/__init__.py
@@ -1,13 +1,2 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
diff --git a/tests/opentelemetry-test-utils/tests/test_base.py b/tests/opentelemetry-test-utils/tests/test_base.py
index 92b83b9b34c..87dbcc8a714 100644
--- a/tests/opentelemetry-test-utils/tests/test_base.py
+++ b/tests/opentelemetry-test-utils/tests/test_base.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.test.test_base import TestBase
 
diff --git a/tests/opentelemetry-test-utils/tests/test_utils.py b/tests/opentelemetry-test-utils/tests/test_utils.py
index dbf06880eca..bcae388c0f0 100644
--- a/tests/opentelemetry-test-utils/tests/test_utils.py
+++ b/tests/opentelemetry-test-utils/tests/test_utils.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 from opentelemetry.test import TestCase
 
diff --git a/tests/opentelemetry-test-utils/tests/test_weaver_live_check.py b/tests/opentelemetry-test-utils/tests/test_weaver_live_check.py
index 209c5de6359..d4c6fc399db 100644
--- a/tests/opentelemetry-test-utils/tests/test_weaver_live_check.py
+++ b/tests/opentelemetry-test-utils/tests/test_weaver_live_check.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 """Live-check tests using Weaver to validate SDK telemetry against semconv.
 
diff --git a/tests/w3c_tracecontext_validation_server.py b/tests/w3c_tracecontext_validation_server.py
index 732ca1e9747..4b44d68560c 100644
--- a/tests/w3c_tracecontext_validation_server.py
+++ b/tests/w3c_tracecontext_validation_server.py
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 """
 This server is intended to be used with the W3C tracecontext validation
 Service. It implements the APIs needed to be exercised by the test bed.
diff --git a/tox.ini b/tox.ini
index d1c5aff8c9f..e06bc17b4f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -97,6 +97,7 @@ envlist =
     pypy3-test-opentelemetry-test-utils
     lint-opentelemetry-test-utils
 
+    lint-license-header-check
     spellcheck
     tracecontext
     typecheck
@@ -342,6 +343,10 @@ commands =
 commands_post =
   docker-compose down -v
 
+[testenv:lint-license-header-check]
+commands =
+  python {toxinidir}/scripts/check_license_header.py
+
 [testenv:public-symbols-check]
 recreate = True
 deps =