diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md
index 1bfaa63463..f67c129759 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md
@@ -33,6 +33,10 @@ are properly propagated to every other DSS instance participating in the deploym
 
 #### [Clean any existing operational intents references with known test IDs](../clean_workspace_op_intents.md)
 
+### Verify secondary DSS instances are clean test step
+
+#### [Verify secondary DSS contains no operational intents references with a test ID](../fragments/oir/verify_clean_secondary_workspace.md)
+
 ## OIR synchronization test case
 
 This test case creates an operational intent reference on the main DSS, and verifies that it is properly synchronized to the other DSS instances.
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.py
index 92b630af25..bdcf4b797d 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.py
@@ -178,11 +178,12 @@ def run(self, context: ExecutionContext):
     def _setup_case(self):
         self.begin_test_case("Setup")
         self.begin_test_step("Ensure clean workspace")
-        self._ensure_clean_workspace_step()
+        self._ensure_clean_primary_workspace_step()
         self.end_test_step()
+        self._verify_clean_secondaries_step()
         self.end_test_case()
 
-    def _ensure_clean_workspace_step(self):
+    def _ensure_clean_primary_workspace_step(self):
         # Delete any active OIR we might own
         test_step_fragments.cleanup_active_oirs(
             self,
@@ -194,6 +195,13 @@ def _ensure_clean_workspace_step(self):
         # Make sure the OIR ID we are going to use is available
         test_step_fragments.cleanup_op_intent(self, self._dss, self._oir_id)
 
+    def _verify_clean_secondaries_step(self):
+        self.begin_test_step("Verify secondary DSS instances are clean")
+        for dss in self._dss_read_instances:
+            test_step_fragments.verify_op_intent_does_not_exist(self, dss, self._oir_id)
+
+        self.end_test_step()
+
     def _create_oir_with_params(
         self, creation_params: PutOperationalIntentReferenceParameters
     ):
@@ -578,5 +586,5 @@ def _confirm_secondary_has_no_oir(self, secondary_dss: DSSInstance):
 
     def cleanup(self):
         self.begin_cleanup()
-        self._ensure_clean_workspace_step()
+        self._ensure_clean_primary_workspace_step()
         self.end_cleanup()
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.md b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.md
index 37144b8cf7..ce5f3926f8 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.md
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.md
@@ -58,6 +58,12 @@ this will be verified at runtime, and the depending checks will not be run if th
 This includes the main test subscription used in this test, as well as the extra subscription
 used for testing the `manager` field sync, if the test is configured to test for it.
 
+### Verify secondary DSS instances are clean test step
+
+This test step queries all secondary instances to confirm that none of the test IDs that are used in the scenario exist.
+
+#### [Verify secondary DSS contains no Subscriptions with a test ID](../fragments/sub/verify_clean_secondary_workspace.md)
+
 ## Subscription Synchronization test case
 
 This test case create a subscription on the main DSS, and verifies that it is properly synchronized to the other DSS instances.
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.py
index 6dbc2f5f81..651c7153e3 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/synchronization/subscription_synchronization.py
@@ -228,10 +228,11 @@ def run(self, context: ExecutionContext):
 
     def _step_setup_case(self):
         self.begin_test_case("Setup")
-        self._ensure_clean_workspace_step()
+        self._ensure_clean_primary_workspace_step()
+        self._verify_clean_secondaries_step()
         self.end_test_case()
 
-    def _ensure_clean_workspace_step(self):
+    def _ensure_clean_primary_workspace_step(self):
         self.begin_test_step("Ensure clean workspace")
         # Start by dropping any active sub
         self._ensure_no_active_subs_exist()
@@ -255,6 +256,16 @@ def _ensure_no_active_subs_exist(self):
             self._planning_area_volume4d,
         )
 
+    def _verify_clean_secondaries_step(self):
+        self.begin_test_step("Verify secondary DSS instances are clean")
+        for dss in self._dss_read_instances:
+            for sub_id in [self._sub_id] + self._ids_for_deletion:
+                test_step_fragments.verify_subscription_does_not_exist(
+                    self, dss, sub_id
+                )
+
+        self.end_test_step()
+
     def _step_create_subscriptions(self):
         # Create the 'main' test subscription:
         self._current_subscription = self._create_sub_with_params(self._sub_params)