diff --git a/monitoring/monitorlib/mutate/scd.py b/monitoring/monitorlib/mutate/scd.py
index 3543fe2c58..818f27470c 100644
--- a/monitoring/monitorlib/mutate/scd.py
+++ b/monitoring/monitorlib/mutate/scd.py
@@ -9,6 +9,7 @@
     OperationID,
     Subscription,
     PutSubscriptionParameters,
+    OperationalIntentReference,
 )
 from yaml.representer import Representer
 
@@ -51,6 +52,22 @@ def subscription(self) -> Optional[Subscription]:
         except ValueError:
             return None
 
+    @property
+    def operational_intent_references(self) -> List[OperationalIntentReference]:
+        if self.json_result is None:
+            return []
+        try:
+            if "operational_intent_references" not in self.json_result:
+                return []
+            oirs_json = self.json_result["operational_intent_references"]
+            if not isinstance(oirs_json, list):
+                return []
+            return [
+                ImplicitDict.parse(oir, OperationalIntentReference) for oir in oirs_json
+            ]
+        except ValueError:
+            return []
+
 
 yaml.add_representer(MutatedSubscription, Representer.represent_dict)
 
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.md b/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.md
index 31aeb3947b..047795456f 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.md
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.md
@@ -77,4 +77,26 @@ are in violation of **[astm.f3548.v21.DSS0210,A2-7-2,4b](../../../../requirement
 
 More specifically, they are breaking the above requirement by failing one or both of the following requirements:
 
+## Subscription creation returns relevant OIRs test case
+
+This test case checks that, when a newly crete subscription intersects with an existing OIR and that the subscription is intended for operational intent references,
+the DSS includes the relevant OIRs in the response to the creation.
+
+### Create a subscription at every DSS in sequence test step
+
+This test step will create a new subscription at every DSS, in sequence, each time verifying that the DSS
+returns any OIRs that intersect with the newly created subscription.
+
+Note that this step is run once for each involved DSS (that is, once for the primary DSS and once for every secondary DSS)
+
+#### [Create subscription](./fragments/sub/crud/create_query.md)
+
+Check that the subscription creation succeeds
+
+#### 🛑 DSS response contains the expected OIRs check
+
+The response from a DSS to a valid subscription creation request is expected to contain any relevant OIRs for the subscription's extents if the subscription had the `notify_for_op_intents` flag set to `true`.
+
+If the DSS omits the intersecting OIR, it fails to comply with **[astm.f3548.v21.DSS0210,A2-7-2,4a](../../../../requirements/astm/f3548/v21.md)**.
+
 ## [Cleanup](./clean_workspace.md)
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.py
index 565d921b07..16330412f3 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/subscription_interactions.py
@@ -12,10 +12,9 @@
 )
 from uas_standards.astm.f3548.v21.constants import Scope
 
-from monitoring.monitorlib.delay import sleep
+from monitoring.monitorlib import fetch
 from monitoring.monitorlib.fetch import QueryError, Query
 from monitoring.monitorlib.geotemporal import Volume4D
-from monitoring.monitorlib.mutate.scd import MutatedSubscription
 from monitoring.prober.infrastructure import register_resource_type
 from monitoring.uss_qualifier.resources.astm.f3548.v21 import PlanningAreaResource
 from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import (
@@ -31,7 +30,6 @@
 from monitoring.uss_qualifier.scenarios.astm.utm.dss import test_step_fragments
 from monitoring.uss_qualifier.scenarios.scenario import (
     TestScenario,
-    PendingCheck,
 )
 from monitoring.uss_qualifier.suites.suite import ExecutionContext
 
@@ -44,14 +42,19 @@ class SubscriptionInteractions(TestScenario):
     A scenario that tests interactions between subscriptions and entities across a DSS cluster.
     """
 
-    SUB_TYPES = [
-        register_resource_type(386, "Subscription"),
-        register_resource_type(387, "Subscription"),
+    BG_SUB_TYPES = [
+        register_resource_type(386, "Background subscription 1"),
+        register_resource_type(387, "Background subscription 2"),
     ]
-    OIR_TYPE = register_resource_type(388, "Operational Intent References")
+    PER_DSS_OIR_TYPE = register_resource_type(
+        388, "Multiple Operational Intent References"
+    )
+    PER_DSS_SUB_TYPE = register_resource_type(389, "Multiple Subscriptions")
+
+    _background_sub_ids: List[SubscriptionID]
 
-    _sub_ids: List[SubscriptionID]
     _oir_ids: List[EntityID]
+    _sub_ids: List[SubscriptionID]
 
     _current_subs: Dict[SubscriptionID, Subscription]
     _current_oirs: Dict[EntityID, OperationalIntentReference]
@@ -92,17 +95,23 @@ def __init__(
             dss.get_instance(scopes) for dss in other_instances.dss_instances
         ]
 
-        # Prepare the two subscription ids:
-        self._sub_ids = [
-            id_generator.id_factory.make_id(sub_type) for sub_type in self.SUB_TYPES
+        # Prepare the two background subscription ids:
+        self._background_sub_ids = [
+            id_generator.id_factory.make_id(sub_type) for sub_type in self.BG_SUB_TYPES
         ]
 
         # Prepare one OIR id for each DSS we will interact with (one for the main and one for each secondary)
-        base_oir_id = id_generator.id_factory.make_id(self.OIR_TYPE)
+        base_oir_id = id_generator.id_factory.make_id(self.PER_DSS_OIR_TYPE)
         self._oir_ids = [
             f"{base_oir_id[:-3]}{i:03d}"
             for i in range(len(self._secondary_instances) + 1)
         ]
+        # Prepare one subscription id for each DSS we will interact with (one for the main and one for each secondary)
+        base_sub_id = id_generator.id_factory.make_id(self.PER_DSS_SUB_TYPE)
+        self._sub_ids = [
+            f"{base_sub_id[:-3]}{i:03d}"
+            for i in range(len(self._secondary_instances) + 1)
+        ]
 
         # First subscription from now to 20 minutes in the future
         self._sub_1_start = datetime.utcnow()
@@ -119,22 +128,24 @@ def run(self, context: ExecutionContext):
         self._setup_case()
 
         self.begin_test_case("OIR creation triggers relevant notifications")
-        self.begin_test_step("Create background subscriptions")
         self._step_create_background_subs()
-        self.end_test_step()
-
         self._steps_create_oirs_at_each_dss()
         self.end_test_case()
 
+        self.begin_test_case("Subscription creation returns relevant OIRs")
+        self._steps_create_subs_at_each_dss()
+        self.end_test_case()
+
         self.end_test_scenario()
 
     def _step_create_background_subs(self):
         """Creates two subscription through the primary DSS: one that is valid from now into a short future,
         and one that starts one hour after the first ends"""
 
+        self.begin_test_step("Create background subscriptions")
         # Create the first subscription
         sub_now_params = self._planning_area.get_new_subscription_params(
-            subscription_id=self._sub_ids[0],
+            subscription_id=self._background_sub_ids[0],
             start_time=self._sub_1_start,
             duration=self._sub_1_end - self._sub_1_start,
             # This is a planning area without constraint processing
@@ -147,7 +158,7 @@ def _step_create_background_subs(self):
 
         # Create the second subscription, that starts later
         sub_later_params = self._planning_area.get_new_subscription_params(
-            subscription_id=self._sub_ids[1],
+            subscription_id=self._background_sub_ids[1],
             start_time=self._sub_2_start,
             duration=self._sub_2_end - self._sub_2_start,
             # This is a planning area without constraint processing
@@ -155,9 +166,11 @@ def _step_create_background_subs(self):
             notify_for_constraints=False,
         )
 
-        sub_later = self._create_sub_with_params(sub_later_params)
+        sub_later, _, _ = self._create_sub_with_params(sub_later_params)
         self._current_subs[sub_later_params.sub_id] = sub_later
 
+        self.end_test_step()
+
     def _steps_create_oirs_at_each_dss(self):
         """Creates an OIR at each DSS instance"""
 
@@ -190,10 +203,10 @@ def _steps_create_oirs_at_each_dss(self):
                 "DSS response contains the expected background subscription",
                 dss.participant_id,
             ) as check:
-                if self._sub_ids[0] not in notification_ids:
+                if self._background_sub_ids[0] not in notification_ids:
                     check.record_failed(
                         summary="DSS did not return the intersecting background subscription",
-                        details=f"Expected subscription {self._sub_ids[0]} (first background subscription) in the"
+                        details=f"Expected subscription {self._background_sub_ids[0]} (first background subscription) in the"
                         f" list of subscriptions to notify, but got {notification_ids}",
                         query_timestamps=[q.request.timestamp],
                     )
@@ -202,10 +215,10 @@ def _steps_create_oirs_at_each_dss(self):
                 "DSS does not return non-intersecting background subscription",
                 dss.participant_id,
             ) as check:
-                if self._sub_ids[1] in notification_ids:
+                if self._background_sub_ids[1] in notification_ids:
                     check.record_failed(
                         summary="DSS returned the non-intersecting background subscription",
-                        details=f"Expected subscription {self._sub_ids[1]} (second background subscription) to not be in the"
+                        details=f"Expected subscription {self._background_sub_ids[1]} (second background subscription) to not be in the"
                         f" list of subscriptions to notify, but got {notification_ids}",
                         query_timestamps=[q.request.timestamp],
                     )
@@ -228,6 +241,46 @@ def _steps_create_oirs_at_each_dss(self):
             self._current_oirs[oir_id] = oir
             self.end_test_step()
 
+    def _steps_create_subs_at_each_dss(self):
+        """Creates a subscription at each DSS instance"""
+
+        # The new subscriptions use the same parameters as the first background subscription
+        common_params = self._planning_area.get_new_subscription_params(
+            subscription_id="",
+            start_time=self._sub_1_start,
+            duration=self._sub_1_end - self._sub_1_start,
+            notify_for_op_intents=True,
+            notify_for_constraints=False,
+        )
+
+        # All previously created OIRs are relevant to each subscription
+        expected_oir_ids = set(self._oir_ids)
+
+        for i, dss in enumerate([self._dss] + self._secondary_instances):
+            self.begin_test_step("Create a subscription at every DSS in sequence")
+
+            sub_id = self._sub_ids[i]
+            common_params.sub_id = sub_id
+            sub, oirs, r = self._create_sub_with_params(common_params)
+            self._current_subs[sub_id] = sub
+
+            returned_oir_ids = set(oir.id for oir in oirs)
+
+            with self.check(
+                "DSS response contains the expected OIRs",
+                dss.participant_id,
+            ) as check:
+                if not expected_oir_ids.issubset(returned_oir_ids):
+                    missing_oirs = expected_oir_ids - returned_oir_ids
+                    check.record_failed(
+                        summary="DSS did not return the expected OIRs",
+                        details=f"Expected OIRs {expected_oir_ids} in the list of OIRs to notify, but got {returned_oir_ids}. "
+                        f"Missing: {missing_oirs}",
+                        query_timestamps=[r.request.timestamp],
+                    )
+
+            self.end_test_step()
+
     def _put_op_intent(
         self,
         dss: DSSInstance,
@@ -258,7 +311,9 @@ def _put_op_intent(
 
         return oir, subs, q
 
-    def _create_sub_with_params(self, params: SubscriptionParams) -> Subscription:
+    def _create_sub_with_params(
+        self, params: SubscriptionParams
+    ) -> Tuple[Subscription, List[OperationalIntentReference], fetch.Query]:
         """Create a subscription with the given parameters via the primary DSS instance"""
         with self.check("Create subscription query succeeds") as check:
             r = self._dss.upsert_subscription(**params)
@@ -268,7 +323,7 @@ def _create_sub_with_params(self, params: SubscriptionParams) -> Subscription:
                     details=f"Failed to create a subscription on primary DSS with code {r.status_code}: {r.error_message}",
                     query_timestamps=[r.request.timestamp],
                 )
-        return r.subscription
+        return r.subscription, r.operational_intent_references, r
 
     def _setup_case(self):
         self.begin_test_case("Setup")
@@ -302,7 +357,7 @@ def _clean_workspace(self):
             self._dss,
             extents,
         )
-        for sub_id in self._sub_ids:
+        for sub_id in self._background_sub_ids:
             test_step_fragments.cleanup_sub(self, self._dss, sub_id)
 
     def cleanup(self):
diff --git a/monitoring/uss_qualifier/suites/astm/utm/dss_probing.md b/monitoring/uss_qualifier/suites/astm/utm/dss_probing.md
index 9876becfbc..9d1b87c15c 100644
--- a/monitoring/uss_qualifier/suites/astm/utm/dss_probing.md
+++ b/monitoring/uss_qualifier/suites/astm/utm/dss_probing.md
@@ -26,7 +26,7 @@
     <th><a href="../../README.md#checked-in">Checked in</a></th>
   </tr>
   <tr>
-    <td rowspan="29" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="30" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
@@ -146,6 +146,11 @@
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>
diff --git a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
index 802353448c..ae75856bd8 100644
--- a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
+++ b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
@@ -35,7 +35,7 @@
     <th><a href="../../README.md#checked-in">Checked in</a></th>
   </tr>
   <tr>
-    <td rowspan="55" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="56" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/prep_planners.md">ASTM F3548 flight planners preparation</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a><br><a href="../../../scenarios/astm/utm/off_nominal_planning/down_uss.md">Off-Nominal planning: down USS</a><br><a href="../../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.md">Off-Nominal planning: down USS with equal priority conflicts not permitted</a></td>
@@ -160,6 +160,11 @@
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>
diff --git a/monitoring/uss_qualifier/suites/faa/uft/message_signing.md b/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
index ac7a0c10e3..bdb209d69f 100644
--- a/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
+++ b/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
@@ -18,7 +18,7 @@
     <th><a href="../../README.md#checked-in">Checked in</a></th>
   </tr>
   <tr>
-    <td rowspan="55" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="56" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/prep_planners.md">ASTM F3548 flight planners preparation</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a><br><a href="../../../scenarios/astm/utm/off_nominal_planning/down_uss.md">Off-Nominal planning: down USS</a><br><a href="../../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.md">Off-Nominal planning: down USS with equal priority conflicts not permitted</a></td>
@@ -143,6 +143,11 @@
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>
diff --git a/monitoring/uss_qualifier/suites/interuss/dss/all_tests.md b/monitoring/uss_qualifier/suites/interuss/dss/all_tests.md
index 16b353e717..e3105d59ed 100644
--- a/monitoring/uss_qualifier/suites/interuss/dss/all_tests.md
+++ b/monitoring/uss_qualifier/suites/interuss/dss/all_tests.md
@@ -408,7 +408,7 @@
     <td><a href="../../../scenarios/astm/netrid/v22a/dss/heavy_traffic_concurrent.md">ASTM NetRID DSS: Concurrent Requests</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/isa_expiry.md">ASTM NetRID DSS: ISA Expiry</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/isa_subscription_interactions.md">ASTM NetRID DSS: ISA Subscription Interactions</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/isa_simple.md">ASTM NetRID DSS: Simple ISA</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/isa_validation.md">ASTM NetRID DSS: Submitted ISA Validations</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/subscription_simple.md">ASTM NetRID DSS: Subscription Simple</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/subscription_validation.md">ASTM NetRID DSS: Subscription Validation</a><br><a href="../../../scenarios/astm/netrid/v22a/dss/token_validation.md">ASTM NetRID DSS: Token Validation</a></td>
   </tr>
   <tr>
-    <td rowspan="29" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="30" style="vertical-align:top;"><a href="../../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
@@ -528,6 +528,11 @@
     <td>Implemented</td>
     <td><a href="../../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>
diff --git a/monitoring/uss_qualifier/suites/uspace/flight_auth.md b/monitoring/uss_qualifier/suites/uspace/flight_auth.md
index bf37ad13f6..88c44b6b4f 100644
--- a/monitoring/uss_qualifier/suites/uspace/flight_auth.md
+++ b/monitoring/uss_qualifier/suites/uspace/flight_auth.md
@@ -19,7 +19,7 @@
     <th><a href="../README.md#checked-in">Checked in</a></th>
   </tr>
   <tr>
-    <td rowspan="55" style="vertical-align:top;"><a href="../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="56" style="vertical-align:top;"><a href="../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../scenarios/astm/utm/prep_planners.md">ASTM F3548 flight planners preparation</a><br><a href="../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a><br><a href="../../scenarios/astm/utm/off_nominal_planning/down_uss.md">Off-Nominal planning: down USS</a><br><a href="../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.md">Off-Nominal planning: down USS with equal priority conflicts not permitted</a></td>
@@ -144,6 +144,11 @@
     <td>Implemented</td>
     <td><a href="../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>
diff --git a/monitoring/uss_qualifier/suites/uspace/required_services.md b/monitoring/uss_qualifier/suites/uspace/required_services.md
index cf52d1a761..9fcc6811f2 100644
--- a/monitoring/uss_qualifier/suites/uspace/required_services.md
+++ b/monitoring/uss_qualifier/suites/uspace/required_services.md
@@ -454,7 +454,7 @@
     <td><a href="../../scenarios/astm/netrid/v22a/dss/heavy_traffic_concurrent.md">ASTM NetRID DSS: Concurrent Requests</a><br><a href="../../scenarios/astm/netrid/v22a/dss/isa_expiry.md">ASTM NetRID DSS: ISA Expiry</a><br><a href="../../scenarios/astm/netrid/v22a/dss/isa_subscription_interactions.md">ASTM NetRID DSS: ISA Subscription Interactions</a><br><a href="../../scenarios/astm/netrid/v22a/dss/isa_simple.md">ASTM NetRID DSS: Simple ISA</a><br><a href="../../scenarios/astm/netrid/v22a/dss/isa_validation.md">ASTM NetRID DSS: Submitted ISA Validations</a><br><a href="../../scenarios/astm/netrid/v22a/dss/subscription_simple.md">ASTM NetRID DSS: Subscription Simple</a><br><a href="../../scenarios/astm/netrid/v22a/dss/subscription_validation.md">ASTM NetRID DSS: Subscription Validation</a><br><a href="../../scenarios/astm/netrid/v22a/dss/token_validation.md">ASTM NetRID DSS: Token Validation</a></td>
   </tr>
   <tr>
-    <td rowspan="55" style="vertical-align:top;"><a href="../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
+    <td rowspan="56" style="vertical-align:top;"><a href="../../requirements/astm/f3548/v21.md">astm<br>.f3548<br>.v21</a></td>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,1</a></td>
     <td>Implemented</td>
     <td><a href="../../scenarios/astm/utm/prep_planners.md">ASTM F3548 flight planners preparation</a><br><a href="../../scenarios/astm/utm/dss/op_intent_ref_access_control.md">ASTM F3548-21 UTM DSS Operational Intent Reference Access Control</a><br><a href="../../scenarios/astm/utm/dss/authentication/authentication_validation.md">ASTM SCD DSS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a><br><a href="../../scenarios/astm/utm/dss/synchronization/op_intent_ref_synchronization.md">ASTM SCD DSS: Operational Intent Reference Synchronization</a><br><a href="../../scenarios/astm/utm/dss/subscription_simple.md">ASTM SCD DSS: Subscription Simple</a><br><a href="../../scenarios/astm/utm/dss/synchronization/subscription_synchronization.md">ASTM SCD DSS: Subscription Synchronization</a><br><a href="../../scenarios/astm/utm/dss/subscription_validation.md">ASTM SCD DSS: Subscription Validation</a><br><a href="../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a><br><a href="../../scenarios/astm/utm/off_nominal_planning/down_uss.md">Off-Nominal planning: down USS</a><br><a href="../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.md">Off-Nominal planning: down USS with equal priority conflicts not permitted</a></td>
@@ -579,6 +579,11 @@
     <td>Implemented</td>
     <td><a href="../../scenarios/astm/utm/dss/op_intent_ref_key_validation.md">ASTM SCD DSS: Operational Intent Reference Key Validation</a></td>
   </tr>
+  <tr>
+    <td><a href="../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4a</a></td>
+    <td>Implemented</td>
+    <td><a href="../../scenarios/astm/utm/dss/subscription_interactions.md">ASTM SCD DSS: Subscription and entity interaction</a></td>
+  </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0210,A2-7-2,4b</a></td>
     <td>Implemented</td>