diff --git a/monitoring/benchmarker/configurations/interuss/scd/single_s2_cell.jsonnet b/monitoring/benchmarker/configurations/interuss/scd/single_s2_cell.jsonnet
index 2eadc59671..11cf111286 100644
--- a/monitoring/benchmarker/configurations/interuss/scd/single_s2_cell.jsonnet
+++ b/monitoring/benchmarker/configurations/interuss/scd/single_s2_cell.jsonnet
@@ -79,7 +79,7 @@ local shape = {
       f3548: {
         create_subscription: {
           subscription: {
-            subscription_id: '16b87239-6063-47d4-a2ff-%d05086859f32' % (sub_index - 1),
+            subscription_id: '3bdb0b88-a522-4286-9499-%d60e56c953bb' % (sub_index - 1),
             duration: '23h',
             area: {
               lat_min: 34 - 0.00001,
@@ -99,7 +99,7 @@ local shape = {
       name: 'Delete subscription %d' % sub_index,
       f3548: {
         delete_subscription: {
-          subscription_id: '16b87239-6063-47d4-a2ff-%d05086859f32' % (sub_index - 1),
+          subscription_id: '3bdb0b88-a522-4286-9499-%d60e56c953bb' % (sub_index - 1),
           mode: 'GetDeleteIfExist',
         },
       },
@@ -132,16 +132,7 @@ local shape = {
           dss_selection_strategy: 'Random',
           subscription_strategy: {
             single_subscription: {
-              subscription_id: '3bdb0b88-a522-4286-9499-160e56c953bb',
-              duration: '23h',
-              area: {
-                lat_min: 34 - 0.00001,
-                lng_min: -118 - 0.00001,
-                lat_max: 34 + 0.00001,
-                lng_max: -118 + 0.00001,
-              },
-              min_alt: {value: 0, units: 'M', reference: 'W84'},
-              max_alt: {value: 3000, units: 'M', reference: 'W84'},
+              subscription_id: '3bdb0b88-a522-4286-9499-060e56c953bb',
             },
           },
           op_intent_ref_creation_strategy: {
diff --git a/monitoring/benchmarker/configurations/user/astm/scd.py b/monitoring/benchmarker/configurations/user/astm/scd.py
index dc38cbbc5d..134f356b19 100644
--- a/monitoring/benchmarker/configurations/user/astm/scd.py
+++ b/monitoring/benchmarker/configurations/user/astm/scd.py
@@ -5,25 +5,12 @@
 
 from monitoring.benchmarker.configurations.user.astm.dss import ASTMDSSSelectionStrategy
 from monitoring.benchmarker.engine.coordination import CoordinationGroupID
-from monitoring.monitorlib.geo import Altitude, LatLngBoundingBox
 from monitoring.uss_qualifier.resources.definitions import ResourceID
 
 
 class SingleSubscription(ImplicitDict):
     subscription_id: SubscriptionID
-    """ID of the single subscription to create, or ensure exists."""
-
-    duration: StringBasedTimeDelta
-    """Duration of the subscription, from the time it is created."""
-
-    area: LatLngBoundingBox
-    """Horizontal area this subscription should cover."""
-
-    min_alt: Altitude
-    """Altitude below which this subscription should not apply."""
-
-    max_alt: Altitude
-    """Altitude above which this subscription should not apply."""
+    """ID of the single subscription to use when creating operational intents."""
 
 
 class ImplicitSubscription(ImplicitDict):
@@ -32,7 +19,9 @@ class ImplicitSubscription(ImplicitDict):
 
 class SubscriptionStrategy(ImplicitDict):
     single_subscription: Optional[SingleSubscription]
-    """Planner ensures there is a single subscription, established at the start of operations, covering all their flights."""
+    """Planner expects there to be a single subscription established at the start of operations covering all their flights.
+    
+    A configuration specifying this strategy must separately ensure this subscription exists, such as via an f3548.create_subscription action."""
 
     implicit_subscription: Optional[ImplicitSubscription]
     """Planner has the DSS establish an implicit subscription for each individual flight."""
diff --git a/monitoring/benchmarker/engine/users/flight_planner/scd.py b/monitoring/benchmarker/engine/users/flight_planner/scd.py
index fe4dcf6afb..2f2fb4595f 100644
--- a/monitoring/benchmarker/engine/users/flight_planner/scd.py
+++ b/monitoring/benchmarker/engine/users/flight_planner/scd.py
@@ -63,7 +63,6 @@ class SCDHandler(CoordinationSubscriber):
 
     random: Random
 
-    subscription_checked: bool = False
     op_intent_refs: dict[FlightID, api.OperationalIntentReference]
 
     key: list[api.EntityOVN]
@@ -199,85 +198,7 @@ def select_dss_instance(self) -> DSSInstance:
             )
 
     def get_utm_actions(self, flight: Flight) -> Iterable[FlightAction]:
-        if (
-            not self.subscription_checked
-            and "single_subscription" in self.subscription_strategy
-            and self.subscription_strategy.single_subscription is not None
-        ):
-            yield FlightAction(
-                timestamp=datetime.now(UTC),
-                start=partial(
-                    self.ensure_subscription_exists,
-                    flight,
-                    self.subscription_strategy.single_subscription.subscription_id,
-                ),
-                run_on_shutdown=False,
-            )
-        else:
-            yield from self.get_create_actions(flight)
-
-    async def ensure_subscription_exists(
-        self,
-        flight: Flight,
-        subscription_id: api.SubscriptionID,
-    ) -> list[FlightAction]:
-        t0 = datetime.now(UTC)
-        if not self.subscription_strategy.single_subscription:
-            raise RuntimeError(
-                "ensure_subscription_exists called even though single_subscription was undefined"
-            )
-
-        start_time = t0
-        end_time = (
-            t0 + self.subscription_strategy.single_subscription.duration.timedelta
-        )
-        area = self.subscription_strategy.single_subscription.area.to_latlngrect()
-        min_alt = self.subscription_strategy.single_subscription.min_alt.to_w84_m()
-        max_alt = self.subscription_strategy.single_subscription.max_alt.to_w84_m()
-
-        dss_instance = self.select_dss_instance()
-        uss_base_url = make_fake_url()
-
-        mutated_sub = dss_instance.upsert_subscription(
-            area_vertices=area,
-            start_time=start_time,
-            end_time=end_time,
-            base_url=uss_base_url,
-            sub_id=subscription_id,
-            notify_for_op_intents=True,
-            notify_for_constraints=False,
-            min_alt_m=min_alt,
-            max_alt_m=max_alt,
-        )
-        success = None
-        self.user.record_query(mutated_sub, True)
-
-        if mutated_sub.status_code == 409:
-            # Subscription already exists
-            success = True
-
-        if success is None and not mutated_sub.success:
-            success = False
-
-        if success is None:
-            try:
-                _ = mutated_sub.subscription
-                success = True
-            except ValueError:
-                success = False
-
-        flight.completed_actions.append(
-            CompletedFlightAction(
-                type=FlightActionType.UpsertSCDSubscription,
-                initiated_at=t0,
-                causes_flight_failure=not success,
-            )
-        )
-        self.subscription_checked = True
-        if success:
-            return list(self.get_create_actions(flight))
-        else:
-            return []
+        yield from self.get_create_actions(flight)
 
     def get_create_actions(self, flight: Flight) -> Iterable[FlightAction]:
         op_intent_id = api.EntityID(uuid.uuid4())
diff --git a/schemas/monitoring/benchmarker/configurations/user/astm/scd/SingleSubscription.json b/schemas/monitoring/benchmarker/configurations/user/astm/scd/SingleSubscription.json
index 9511f3a8a0..56c65b4c19 100644
--- a/schemas/monitoring/benchmarker/configurations/user/astm/scd/SingleSubscription.json
+++ b/schemas/monitoring/benchmarker/configurations/user/astm/scd/SingleSubscription.json
@@ -7,33 +7,12 @@
       "description": "Path to content that replaces the $ref",
       "type": "string"
     },
-    "area": {
-      "$ref": "../../../../../monitorlib/geo/LatLngBoundingBox.json",
-      "description": "Horizontal area this subscription should cover."
-    },
-    "duration": {
-      "description": "Duration of the subscription, from the time it is created.",
-      "format": "duration",
-      "type": "string"
-    },
-    "max_alt": {
-      "$ref": "../../../../../monitorlib/geo/Altitude.json",
-      "description": "Altitude above which this subscription should not apply."
-    },
-    "min_alt": {
-      "$ref": "../../../../../monitorlib/geo/Altitude.json",
-      "description": "Altitude below which this subscription should not apply."
-    },
     "subscription_id": {
-      "description": "ID of the single subscription to create, or ensure exists.",
+      "description": "ID of the single subscription to use when creating operational intents.",
       "type": "string"
     }
   },
   "required": [
-    "area",
-    "duration",
-    "max_alt",
-    "min_alt",
     "subscription_id"
   ],
   "type": "object"
diff --git a/schemas/monitoring/benchmarker/configurations/user/astm/scd/SubscriptionStrategy.json b/schemas/monitoring/benchmarker/configurations/user/astm/scd/SubscriptionStrategy.json
index 6526205ebe..159eb5c5ac 100644
--- a/schemas/monitoring/benchmarker/configurations/user/astm/scd/SubscriptionStrategy.json
+++ b/schemas/monitoring/benchmarker/configurations/user/astm/scd/SubscriptionStrategy.json
@@ -19,7 +19,7 @@
       ]
     },
     "single_subscription": {
-      "description": "Planner ensures there is a single subscription, established at the start of operations, covering all their flights.",
+      "description": "Planner expects there to be a single subscription established at the start of operations covering all their flights.\n\nA configuration specifying this strategy must separately ensure this subscription exists, such as via an f3548.create_subscription action.",
       "oneOf": [
         {
           "type": "null"