diff --git a/.github/workflows/build_loop.yml b/.github/workflows/build_loop.yml
index 52c00dedb..84844cbd0 100644
--- a/.github/workflows/build_loop.yml
+++ b/.github/workflows/build_loop.yml
@@ -1,11 +1,13 @@
-name: 4. Build Loop
+name: Triggered Loop Build
 run-name: Build Loop (${{ github.ref_name }})
 on:
   workflow_dispatch:
-  schedule:
-    # Check for updates every Sunday
-    #   Later logic builds if there are updates or if it is the 2nd Sunday of the month
-    - cron: "33 7 * * 0" # Sunday at UTC 7:33
+    inputs:
+      dispatched_by_trigger:
+        description: 'Whether this was dispatched from the trigger scheduled workflow'
+        required: false
+        type: boolean
+        default: false
 
 env:
   GH_PAT: ${{ secrets.GH_PAT }}
@@ -157,7 +159,7 @@ jobs:
       uses: ./.github/workflows/create_certs.yml
       secrets: inherit
       if: |
-        github.event_name == 'workflow_dispatch' ||
+          (github.event_name == 'workflow_dispatch' && github.event.inputs.dispatched_by_trigger != 'true') ||
           (vars.SCHEDULED_BUILD != 'false' && needs.check_status.outputs.IS_SECOND_IN_MONTH == 'true') ||
           (vars.SCHEDULED_SYNC != 'false' && needs.check_status.outputs.NEW_COMMITS == 'true' )
 
@@ -170,7 +172,7 @@ jobs:
       contents: write
     if:
       | # builds with manual start; if scheduled: once a month or when new commits are found
-      github.event_name == 'workflow_dispatch' ||
+        (github.event_name == 'workflow_dispatch' && github.event.inputs.dispatched_by_trigger != 'true') ||
         (vars.SCHEDULED_BUILD != 'false' && needs.check_status.outputs.IS_SECOND_IN_MONTH == 'true') ||
         (vars.SCHEDULED_SYNC != 'false' && needs.check_status.outputs.NEW_COMMITS == 'true' )
     steps:
diff --git a/.github/workflows/trigger_build.yml b/.github/workflows/trigger_build.yml
new file mode 100644
index 000000000..4f8db27f1
--- /dev/null
+++ b/.github/workflows/trigger_build.yml
@@ -0,0 +1,25 @@
+name: 4. Trigger Build Loop 
+run-name: Trigger Build Loop (${{ github.ref_name }})
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "33 7 * * 0" # Sunday at UTC 7:33
+
+jobs:
+  trigger:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Trigger target workflow
+        env:
+          GH_PAT: ${{ secrets.GH_PAT }}
+        run: |
+          curl --fail -X PUT \
+            -H "Authorization: Bearer ${GH_PAT}" \
+            -H "Accept: application/vnd.github+json" \
+            https://api.github.com/repos/${{ github.repository }}/actions/workflows/build_loop.yml/enable
+
+          curl --fail -X POST \
+            -H "Authorization: Bearer ${GH_PAT}" \
+            -H "Accept: application/vnd.github+json" \
+            https://api.github.com/repos/${{ github.repository }}/actions/workflows/build_loop.yml/dispatches \
+            -d '{"ref":"${{ github.ref_name }}", "inputs": {"dispatched_by_trigger": "true"}}'