diff --git a/lib/core/decision_service/index.spec.ts b/lib/core/decision_service/index.spec.ts
index 2334a386b..944fe27c8 100644
--- a/lib/core/decision_service/index.spec.ts
+++ b/lib/core/decision_service/index.spec.ts
@@ -2196,6 +2196,157 @@ describe('DecisionService', () => {
           decisionSource: DECISION_SOURCES.HOLDOUT,
         });
       });
+
+      describe('excludeTargetedDeliveries', () => {
+        const getExcludeTDDatafile = (excludeTargetedDeliveries?: boolean) => {
+          const datafile = getHoldoutTestDatafile();
+          datafile.holdouts = datafile.holdouts.map((holdout: any) => {
+            if (holdout.id === 'holdout_running_id') {
+              return {
+                ...holdout,
+                ...(excludeTargetedDeliveries !== undefined ? { excludeTargetedDeliveries } : {}),
+              };
+            }
+            return holdout;
+          });
+          return datafile;
+        };
+
+        it('should return holdout variation immediately when excludeTargetedDeliveries is false', async () => {
+          const { decisionService } = getDecisionService();
+          const config = createProjectConfig(JSON.stringify(getExcludeTDDatafile(false)));
+          const user = new OptimizelyUserContext({
+            optimizely: {} as any,
+            userId: 'tester',
+            attributes: { age: 20 },
+          });
+
+          const feature = config.featureKeyMap['flag_1'];
+          const value = decisionService.resolveVariationsForFeatureList('async', config, [feature], user, {}).get();
+          const variation = (await value)[0];
+
+          expect(variation.result).toEqual({
+            experiment: config.holdoutIdMap && config.holdoutIdMap['holdout_running_id'],
+            variation: config.variationIdMap['holdout_variation_running_id'],
+            decisionSource: DECISION_SOURCES.HOLDOUT,
+          });
+        });
+
+        it('should return holdout variation immediately when excludeTargetedDeliveries is undefined', async () => {
+          const { decisionService } = getDecisionService();
+          const config = createProjectConfig(JSON.stringify(getExcludeTDDatafile(undefined)));
+          const user = new OptimizelyUserContext({
+            optimizely: {} as any,
+            userId: 'tester',
+            attributes: { age: 20 },
+          });
+
+          const feature = config.featureKeyMap['flag_1'];
+          const value = decisionService.resolveVariationsForFeatureList('async', config, [feature], user, {}).get();
+          const variation = (await value)[0];
+
+          expect(variation.result).toEqual({
+            experiment: config.holdoutIdMap && config.holdoutIdMap['holdout_running_id'],
+            variation: config.variationIdMap['holdout_variation_running_id'],
+            decisionSource: DECISION_SOURCES.HOLDOUT,
+          });
+        });
+
+        it('should return delivery variation when excludeTargetedDeliveries is true and delivery matches', async () => {
+          const { decisionService } = getDecisionService();
+          const datafile = getExcludeTDDatafile(true);
+
+          const config = createProjectConfig(JSON.stringify(datafile));
+          const user = new OptimizelyUserContext({
+            optimizely: {} as any,
+            userId: 'tester',
+            attributes: { age: 20 },
+          });
+
+          mockBucket.mockImplementation((param: BucketerParams) => {
+            if (param.experimentKey === 'delivery_1') {
+              return { result: '5004', reasons: [] };
+            }
+            if (param.experimentKey === 'holdout_running') {
+              return { result: 'holdout_variation_running_id', reasons: [] };
+            }
+            return { result: null, reasons: [] };
+          });
+
+          const feature = config.featureKeyMap['flag_1'];
+          const value = decisionService.resolveVariationsForFeatureList('async', config, [feature], user, {}).get();
+          const variation = (await value)[0];
+
+          expect(variation.result).toEqual({
+            experiment: config.experimentKeyMap['delivery_1'],
+            variation: config.variationIdMap['5004'],
+            decisionSource: DECISION_SOURCES.ROLLOUT,
+          });
+        });
+
+        it('should return holdout variation when excludeTargetedDeliveries is true but no delivery matches', async () => {
+          const { decisionService } = getDecisionService();
+          const datafile = getExcludeTDDatafile(true);
+
+          const config = createProjectConfig(JSON.stringify(datafile));
+          const user = new OptimizelyUserContext({
+            optimizely: {} as any,
+            userId: 'tester',
+            attributes: { age: 20 },
+          });
+
+          mockBucket.mockImplementation((param: BucketerParams) => {
+            if (param.experimentKey === 'holdout_running') {
+              return { result: 'holdout_variation_running_id', reasons: [] };
+            }
+            return { result: null, reasons: [] };
+          });
+
+          const feature = config.featureKeyMap['flag_1'];
+          const value = decisionService.resolveVariationsForFeatureList('async', config, [feature], user, {}).get();
+          const variation = (await value)[0];
+
+          expect(variation.result).toEqual({
+            experiment: config.holdoutIdMap && config.holdoutIdMap['holdout_running_id'],
+            variation: config.variationIdMap['holdout_variation_running_id'],
+            decisionSource: DECISION_SOURCES.HOLDOUT,
+          });
+        });
+
+        it('should still block experiment rules when excludeTargetedDeliveries is true', async () => {
+          const { decisionService } = getDecisionService();
+          const datafile = getExcludeTDDatafile(true);
+
+          const config = createProjectConfig(JSON.stringify(datafile));
+          const user = new OptimizelyUserContext({
+            optimizely: {} as any,
+            userId: 'tester',
+            attributes: { age: 20 },
+          });
+
+          mockBucket.mockImplementation((param: BucketerParams) => {
+            if (param.experimentKey === 'holdout_running') {
+              return { result: 'holdout_variation_running_id', reasons: [] };
+            }
+            if (param.experimentKey === 'exp_1') {
+              return { result: '5001', reasons: [] };
+            }
+            return { result: null, reasons: [] };
+          });
+
+          const feature = config.featureKeyMap['flag_1'];
+          const value = decisionService.resolveVariationsForFeatureList('async', config, [feature], user, {}).get();
+          const variation = (await value)[0];
+
+          // Should NOT get exp_1 — holdout blocks experiments even with excludeTargetedDeliveries
+          // Should get holdout since no delivery matched
+          expect(variation.result).toEqual({
+            experiment: config.holdoutIdMap && config.holdoutIdMap['holdout_running_id'],
+            variation: config.variationIdMap['holdout_variation_running_id'],
+            decisionSource: DECISION_SOURCES.HOLDOUT,
+          });
+        });
+      });
     });
   });
 
diff --git a/lib/core/decision_service/index.ts b/lib/core/decision_service/index.ts
index 2064ec2a2..14213e5b3 100644
--- a/lib/core/decision_service/index.ts
+++ b/lib/core/decision_service/index.ts
@@ -119,6 +119,7 @@ export const USER_MEETS_CONDITIONS_FOR_HOLDOUT = 'User %s meets conditions for h
 export const USER_DOESNT_MEET_CONDITIONS_FOR_HOLDOUT = 'User %s does not meet conditions for holdout %s.';
 export const USER_BUCKETED_INTO_HOLDOUT_VARIATION = 'User %s is in variation %s of holdout %s.';
 export const USER_NOT_BUCKETED_INTO_HOLDOUT_VARIATION = 'User %s is in no holdout variation.';
+export const TARGETED_DELIVERY_EXCLUDED_FROM_HOLDOUT = 'User %s is in holdout %s but targeted deliveries are excluded from holdout.';
 
 export interface DecisionObj {
   experiment: Experiment | Holdout | null;
@@ -969,11 +970,23 @@ export class DecisionService {
     // getGlobalHoldouts() returns holdouts with includedRules == null/undefined.
     const globalHoldouts = getGlobalHoldouts(configObj);
 
+    let activeHoldoutDecision: DecisionObj | null = null;
+    let activeHoldout: Holdout | null = null;
+
     for (const holdout of globalHoldouts) {
       const holdoutDecision = this.getVariationForHoldout(configObj, holdout, user);
       decideReasons.push(...holdoutDecision.reasons);
 
       if (holdoutDecision.result.variation) {
+        if (holdout.excludeTargetedDeliveries) {
+          const userId = user.getUserId();
+          this.logger?.info(TARGETED_DELIVERY_EXCLUDED_FROM_HOLDOUT, userId, holdout.key);
+          decideReasons.push([TARGETED_DELIVERY_EXCLUDED_FROM_HOLDOUT, userId, holdout.key]);
+          activeHoldoutDecision = holdoutDecision.result;
+          activeHoldout = holdout;
+          break;
+        }
+
         return Value.of(op, {
           result: holdoutDecision.result,
           reasons: decideReasons,
@@ -981,33 +994,58 @@ export class DecisionService {
       }
     }
 
-    return this.getVariationForFeatureExperiment(op, configObj, feature, user, decideOptions, userProfileTracker).then((experimentDecision) => {
-      if (experimentDecision.error || experimentDecision.result.variation !== null) {
+    if (!activeHoldoutDecision) {
+      return this.getVariationForFeatureExperiment(op, configObj, feature, user, decideOptions, userProfileTracker).then((experimentDecision) => {
+        if (experimentDecision.error || experimentDecision.result.variation !== null) {
+          return Value.of(op, {
+            ...experimentDecision,
+            reasons: [...decideReasons, ...experimentDecision.reasons],
+          });
+        }
+
+        decideReasons.push(...experimentDecision.reasons);
+
+        const rolloutDecision = this.getVariationForRollout(configObj, feature, user);
+        decideReasons.push(...rolloutDecision.reasons);
+        const rolloutDecisionResult = rolloutDecision.result;
+        const userId = user.getUserId();
+
+        if (rolloutDecisionResult.variation) {
+          this.logger?.debug(USER_IN_ROLLOUT, userId, feature.key);
+          decideReasons.push([USER_IN_ROLLOUT, userId, feature.key]);
+        } else {
+          this.logger?.debug(USER_NOT_IN_ROLLOUT, userId, feature.key);
+          decideReasons.push([USER_NOT_IN_ROLLOUT, userId, feature.key]);
+        }
+
         return Value.of(op, {
-          ...experimentDecision,
-          reasons: [...decideReasons, ...experimentDecision.reasons],
+          result: rolloutDecisionResult,
+          reasons: decideReasons,
         });
-      }
+      });
+    }
 
-      decideReasons.push(...experimentDecision.reasons);
-      
-      const rolloutDecision = this.getVariationForRollout(configObj, feature, user);
-      decideReasons.push(...rolloutDecision.reasons);
-      const rolloutDecisionResult = rolloutDecision.result;
-      const userId = user.getUserId();
-  
-      if (rolloutDecisionResult.variation) {
-        this.logger?.debug(USER_IN_ROLLOUT, userId, feature.key);
-        decideReasons.push([USER_IN_ROLLOUT, userId, feature.key]);
-      } else {
-        this.logger?.debug(USER_NOT_IN_ROLLOUT, userId, feature.key);
-        decideReasons.push([USER_NOT_IN_ROLLOUT, userId, feature.key]);
-      }
-  
+    // User is in holdout with excludeTargetedDeliveries — skip experiments, evaluate delivery rules
+    const rolloutDecision = this.getVariationForRollout(configObj, feature, user);
+    decideReasons.push(...rolloutDecision.reasons);
+    const rolloutDecisionResult = rolloutDecision.result;
+    const userId = user.getUserId();
+
+    if (rolloutDecisionResult.variation) {
+      this.logger?.debug(USER_IN_ROLLOUT, userId, feature.key);
+      decideReasons.push([USER_IN_ROLLOUT, userId, feature.key]);
       return Value.of(op, {
         result: rolloutDecisionResult,
         reasons: decideReasons,
       });
+    }
+
+    this.logger?.debug(USER_NOT_IN_ROLLOUT, userId, feature.key);
+    decideReasons.push([USER_NOT_IN_ROLLOUT, userId, feature.key]);
+
+    return Value.of(op, {
+      result: activeHoldoutDecision,
+      reasons: decideReasons,
     });
   }
 
diff --git a/lib/shared_types.ts b/lib/shared_types.ts
index 6640622ab..4cc772019 100644
--- a/lib/shared_types.ts
+++ b/lib/shared_types.ts
@@ -190,6 +190,7 @@ export interface Holdout extends ExperimentCore {
    * membership.
    */
   isGlobal: boolean;
+  excludeTargetedDeliveries?: boolean;
 }
 
 export function isHoldout(obj: Experiment | Holdout): obj is Holdout {