diff --git a/.basedpyright/baseline.json b/.basedpyright/baseline.json
index 71e300ef4ce..3409449a3b5 100644
--- a/.basedpyright/baseline.json
+++ b/.basedpyright/baseline.json
@@ -13366,16 +13366,6 @@
                 }
             }
         ],
-        "./monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/generic.py": [
-            {
-                "code": "reportArgumentType",
-                "range": {
-                    "startColumn": 16,
-                    "endColumn": 31,
-                    "lineCount": 1
-                }
-            }
-        ],
         "./monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/oir_api_validator.py": [
             {
                 "code": "reportArgumentType",
diff --git a/monitoring/uss_qualifier/configurations/dev/message_signing.yaml b/monitoring/uss_qualifier/configurations/dev/message_signing.yaml
index a332659b6eb..89404bca8a2 100644
--- a/monitoring/uss_qualifier/configurations/dev/message_signing.yaml
+++ b/monitoring/uss_qualifier/configurations/dev/message_signing.yaml
@@ -80,4 +80,4 @@ v1:
         pass_condition:
           elements:
             count:
-              equal_to: 6 # 2 DatastoreAccess, 1 PoolInfo, 1 GetSystemVersions, 1 MakeUssReport, 1 EvaluateSystemVersions
+              equal_to: 7 # 2 DatastoreAccess, 1 PoolInfo, 1 GetSystemVersions, 1 SCDAuthenticationValidation, 1 MakeUssReport, 1 EvaluateSystemVersions
diff --git a/monitoring/uss_qualifier/resources/astm/f3548/v21/uss.py b/monitoring/uss_qualifier/resources/astm/f3548/v21/uss.py
new file mode 100644
index 00000000000..da6793eba61
--- /dev/null
+++ b/monitoring/uss_qualifier/resources/astm/f3548/v21/uss.py
@@ -0,0 +1,15 @@
+from dataclasses import dataclass
+
+from monitoring.monitorlib.infrastructure import UTMClientSession
+
+
+@dataclass(frozen=True)
+class USSInstance:
+    participant_id: str
+    """Participant responsible for this USS instance"""
+
+    base_url: str
+    """Base URL for the USS instance according to the ASTM F3548-21 API"""
+
+    client: UTMClientSession
+    """Requests session that enables easy access to ASTM-specified UTM endpoints"""
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/generic.py b/monitoring/uss_qualifier/scenarios/astm/utm/auth_validator.py
similarity index 57%
rename from monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/generic.py
rename to monitoring/uss_qualifier/scenarios/astm/utm/auth_validator.py
index 7a39afa1f2e..765db652137 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/generic.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/auth_validator.py
@@ -1,46 +1,59 @@
+from typing import Protocol
+
 from uas_standards.astm.f3548.v21.constants import Scope
 
 from monitoring.monitorlib import fetch, schema_validation
 from monitoring.monitorlib.auth import InvalidTokenSignatureAuth
 from monitoring.monitorlib.infrastructure import (
+    UTMClientSession,
     utm_client_session_factory,
 )
 from monitoring.monitorlib.schema_validation import F3548_21
-from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import DSSInstance
 from monitoring.uss_qualifier.scenarios.scenario import TestScenario
 
 
+class AuthValidationTarget(Protocol):
+    @property
+    def participant_id(self) -> str: ...
+
+    @property
+    def base_url(self) -> str: ...
+
+    @property
+    def client(self) -> UTMClientSession: ...
+
+
 class GenericAuthValidator:
     """
-    Utility class for common DSS authentication validation requirements.
+    Utility class for common authentication validation requirements.
     """
 
     def __init__(
         self,
         scenario: TestScenario,
-        dss: DSSInstance,
+        target: AuthValidationTarget,
         valid_scope: Scope,
     ):
-        self._pid = dss.participant_id
+        self._pid = target.participant_id
         self._scenario = scenario
-        self._authenticated_session = dss.client
+        self._authenticated_session = target.client
         self._invalid_token_session = utm_client_session_factory.get_session(
-            dss.base_url, auth_adapter=InvalidTokenSignatureAuth()
+            target.base_url, auth_adapter=InvalidTokenSignatureAuth()
         )
         self._no_auth_session = utm_client_session_factory.get_session(
-            dss.base_url, auth_adapter=None
+            target.base_url, auth_adapter=None
         )
         self._valid_scope = valid_scope
 
     def query_no_auth(self, **query_kwargs) -> fetch.Query:
-        """Issue a query to the DSS without any credentials being passed"""
+        """Issue a query to the authentication target without any credentials being passed"""
         q = fetch.query_and_describe(client=self._no_auth_session, **query_kwargs)
         self._scenario.record_query(q)
         return q
 
     def query_invalid_token(self, **query_kwargs) -> fetch.Query:
         """
-        Issue a query to the DSS with an invalid token signature, but a valid token.
+        Issue a query to the authentication target with an invalid token signature, but a well-formed token.
         An appropriate scope is provided.
         """
         q = fetch.query_and_describe(
@@ -53,16 +66,15 @@ def query_invalid_token(self, **query_kwargs) -> fetch.Query:
 
     def query_missing_scope(self, **query_kwargs) -> fetch.Query:
         """
-        Issue a query to the DSS with a valid token, but omits specifying a scope.
+        Issue a query to the authentication target with a valid token, but omits specifying a scope.
         """
         q = fetch.query_and_describe(client=self._authenticated_session, **query_kwargs)
         self._scenario.record_query(q)
         return q
 
-    def query_wrong_scope(self, scope: str, **query_kwargs) -> fetch.Query:
+    def query_with_scope(self, scope: str, **query_kwargs) -> fetch.Query:
         """
-        Issue a query to the DSS with a valid token, but with a scope that is not allowed
-        to perform the operation.
+        Issue a query to the authentication target with a valid token for the supplied scope.
         Note that the auth adapter needs to be able to request a token with this scope.
         """
         q = fetch.query_and_describe(
@@ -75,7 +87,7 @@ def query_wrong_scope(self, scope: str, **query_kwargs) -> fetch.Query:
 
     def query_valid_auth(self, **query_kwargs) -> fetch.Query:
         """
-        Issue a query to the DSS with valid credentials.
+        Issue a query to the authentication target with valid credentials.
         """
         q = fetch.query_and_describe(
             client=self._authenticated_session,
@@ -91,15 +103,23 @@ def verify_4xx_response(self, q: fetch.Query):
         with self._scenario.check(
             "Unauthorized requests return the proper error message body", self._pid
         ) as check:
-            errors = schema_validation.validate(
-                F3548_21.OpenAPIPath,
-                F3548_21.ErrorResponse,
-                q.response.json,
-            )
-            if errors:
+            if q.response.json is None:
                 check.record_failed(
-                    summary="Unexpected error response body",
-                    details=f"Response body for {q.request.method} query to {q.request.url} failed validation: {errors}, "
-                    f"body content was: {q.response.json}",
+                    summary="Error response body is not JSON",
+                    details=f"Response body for {q.request.method} query to {q.request.url} is not valid JSON, "
+                    f"body content was {q.response.get('body', '')!r}",
                     query_timestamps=[q.request.timestamp],
                 )
+            else:
+                errors = schema_validation.validate(
+                    F3548_21.OpenAPIPath,
+                    F3548_21.ErrorResponse,
+                    q.response.json,
+                )
+                if errors:
+                    check.record_failed(
+                        summary="Unexpected error response body",
+                        details=f"Response body for {q.request.method} query to {q.request.url} failed validation: {errors}, "
+                        f"body content was: {q.response.json}",
+                        query_timestamps=[q.request.timestamp],
+                    )
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/authentication_validation.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/authentication_validation.py
index 52df92d2a2a..3a423c0dd6e 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/authentication_validation.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/authentication_validation.py
@@ -15,6 +15,9 @@
 from monitoring.uss_qualifier.resources.interuss.id_generator import IDGeneratorResource
 from monitoring.uss_qualifier.resources.planning_area import PlanningAreaResource
 from monitoring.uss_qualifier.resources.resource import MissingResourceError
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
+    GenericAuthValidator,
+)
 from monitoring.uss_qualifier.scenarios.astm.utm.dss import test_step_fragments
 from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.availability_api_validator import (
     AvailabilityAuthValidator,
@@ -22,9 +25,6 @@
 from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.cr_api_validator import (
     ConstraintRefAuthValidator,
 )
-from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.generic import (
-    GenericAuthValidator,
-)
 from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.oir_api_validator import (
     OperationalIntentRefAuthValidator,
 )
@@ -40,7 +40,7 @@ class AuthenticationValidation(TestScenario):
     A scenario that verifies that the DSS properly authenticates requests to all its endpoints,
     and properly validates the scopes of the requests depending on the action being performed.
 
-    Note that this scenario does not verif that a DSS only allows an entity owner to mutate or delete them:
+    Note that this scenario does not verify that a DSS only allows an entity owner to mutate or delete them:
     this is covered in other scenarios.
     """
 
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/availability_api_validator.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/availability_api_validator.py
index fe1cf6b3827..c6b7cfccaec 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/availability_api_validator.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/availability_api_validator.py
@@ -10,7 +10,7 @@
 from monitoring.monitorlib.fetch import QueryError, QueryType
 from monitoring.monitorlib.infrastructure import UTMClientSession
 from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import DSSInstance
-from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.generic import (
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
     GenericAuthValidator,
 )
 from monitoring.uss_qualifier.scenarios.scenario import PendingCheck, TestScenario
@@ -113,7 +113,7 @@ def _verify_read(self):
 
         # Valid credentials but wrong scope:
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -226,7 +226,7 @@ def _verify_set(self):
 
         # Valid credentials but wrong scope:
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/cr_api_validator.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/cr_api_validator.py
index 9ecef2b1f1a..499fa4184a2 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/cr_api_validator.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/cr_api_validator.py
@@ -17,7 +17,7 @@
 from monitoring.monitorlib.infrastructure import UTMClientSession
 from monitoring.uss_qualifier.resources import PlanningAreaResource
 from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import DSSInstance
-from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.generic import (
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
     GenericAuthValidator,
 )
 from monitoring.uss_qualifier.scenarios.scenario import PendingCheck, TestScenario
@@ -137,7 +137,7 @@ def _verify_cr_creation(self):
 
         # Valid credentials but wrong scope:
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -232,7 +232,7 @@ def _verify_cr_get(self):
 
         # Valid credentials but wrong scope
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -328,7 +328,7 @@ def _verify_cr_mutation(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -415,7 +415,7 @@ def _verify_cr_deletion(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -506,7 +506,7 @@ def _verify_cr_search(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/oir_api_validator.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/oir_api_validator.py
index d5d68838181..74d03f9a9b3 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/oir_api_validator.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/oir_api_validator.py
@@ -17,7 +17,7 @@
 from monitoring.monitorlib.infrastructure import UTMClientSession
 from monitoring.uss_qualifier.resources import PlanningAreaResource
 from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import DSSInstance
-from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.generic import (
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
     GenericAuthValidator,
 )
 from monitoring.uss_qualifier.scenarios.scenario import PendingCheck, TestScenario
@@ -142,7 +142,7 @@ def _verify_oir_creation(self):
 
         # Valid credentials but wrong scope:
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -236,7 +236,7 @@ def _verify_oir_get(self):
 
         # Valid credentials but wrong scope
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -318,7 +318,7 @@ def _verify_oir_mutation(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -405,7 +405,7 @@ def _verify_oir_deletion(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -482,7 +482,7 @@ def _verify_oir_search(self):
             self._gen_val.verify_4xx_response(no_scope_q)
 
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/sub_api_validator.py b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/sub_api_validator.py
index daa46e55447..f92b0979df4 100644
--- a/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/sub_api_validator.py
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/dss/authentication/sub_api_validator.py
@@ -14,7 +14,7 @@
 from monitoring.monitorlib.mutate.scd import MutatedSubscription
 from monitoring.uss_qualifier.resources import PlanningAreaResource
 from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import DSSInstance
-from monitoring.uss_qualifier.scenarios.astm.utm.dss.authentication.generic import (
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
     GenericAuthValidator,
 )
 from monitoring.uss_qualifier.scenarios.scenario import PendingCheck, TestScenario
@@ -143,7 +143,7 @@ def _verify_sub_creation(self):
 
         # Valid credentials but wrong scope:
         if self._test_wrong_scope:
-            wrong_scope_q = self._gen_val.query_wrong_scope(
+            wrong_scope_q = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -224,7 +224,7 @@ def _verify_sub_get(self):
             self._gen_val.verify_4xx_response(query_missing_scope)
 
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -313,7 +313,7 @@ def _verify_sub_mutation(self):
             self._gen_val.verify_4xx_response(query_missing_scope)
 
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -399,7 +399,7 @@ def _verify_sub_deletion(self):
             self._gen_val.verify_4xx_response(query_missing_scope)
 
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
@@ -495,7 +495,7 @@ def _verify_sub_search(self):
             self._gen_val.verify_4xx_response(query_missing_scope)
 
         if self._test_wrong_scope:
-            query_wrong_scope = self._gen_val.query_wrong_scope(
+            query_wrong_scope = self._gen_val.query_with_scope(
                 scope=self._test_wrong_scope, **query_kwargs
             )
             with self._scenario.check(
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/__init__.py b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/endpoint_auth_validator.py b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/endpoint_auth_validator.py
new file mode 100644
index 00000000000..da7fd80a737
--- /dev/null
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/endpoint_auth_validator.py
@@ -0,0 +1,141 @@
+from uas_standards.astm.f3548.v21.constants import Scope
+
+from monitoring.uss_qualifier.scenarios.astm.utm.auth_validator import (
+    AuthValidationTarget,
+    GenericAuthValidator,
+)
+from monitoring.uss_qualifier.scenarios.scenario import TestScenario
+
+
+class EndpointAuthValidator:
+    """
+    Verifies authentication and authorization of a single endpoint by issuing requests with
+    missing credentials (expect 401), invalid credentials (expect 401), an incorrect scope
+    (expect 403), and each valid scope (expect anything other than 401 or 403).
+
+    Each rejected request is also checked for a valid ErrorResponse body.
+
+    Checks for valid scopes are only performed when `test_valid_credentials` is True.
+
+    The calling scenario's documentation must declare these checks in the current test step:
+    * "<operation_name> with missing credentials"
+    * "<operation_name> with invalid credentials"
+    * "<operation_name> with an incorrect scope"
+    * "Unauthorized requests return the proper error message body"
+    * "<operation_name> with valid credentials" (when test_valid_credentials is True)
+    """
+
+    def __init__(
+        self,
+        scenario: TestScenario,
+        operation_name: str,
+        auth_target: AuthValidationTarget,
+        client_scopes: set[str],
+        valid_scopes: list[Scope],
+        query_kwargs: dict,
+        test_valid_credentials: bool = False,
+    ):
+        if not valid_scopes:
+            raise ValueError("valid_scopes must not be empty")
+        generic_validator = GenericAuthValidator(
+            scenario,
+            auth_target,
+            valid_scopes[0],
+        )
+        self._scenario = scenario
+        self._operation_name = operation_name
+        self._generic_validator = generic_validator
+        self._pid = auth_target.participant_id
+        self._client_scopes = client_scopes
+        self._valid_scopes = valid_scopes
+        self._query_kwargs = query_kwargs
+        self._test_valid_credentials = test_valid_credentials
+
+    def verify_endpoint_authentication(self):
+        """Executes each auth scenario for missing, invalid, incorrectly scoped, and valid credentials"""
+        self._verify_missing_credentials()
+        self._verify_invalid_credentials()
+        self._verify_incorrect_scope()
+        if self._test_valid_credentials:
+            for scope in self._valid_scopes:
+                self._verify_valid_credentials(scope)
+
+    def _verify_missing_credentials(self):
+        query = self._generic_validator.query_no_auth(**self._query_kwargs)
+        with self._scenario.check(
+            f"{self._operation_name} with missing credentials",
+            self._pid,
+        ) as check:
+            if query.status_code != 401:
+                check.record_failed(
+                    summary=f"Expected 401, got {query.status_code}",
+                    query_timestamps=[query.request.timestamp],
+                )
+        self._generic_validator.verify_4xx_response(query)
+
+    def _verify_invalid_credentials(self):
+        query = self._generic_validator.query_invalid_token(**self._query_kwargs)
+        with self._scenario.check(
+            f"{self._operation_name} with invalid credentials",
+            self._pid,
+        ) as check:
+            if query.status_code != 401:
+                check.record_failed(
+                    summary=f"Expected 401, got {query.status_code}",
+                    query_timestamps=[query.request.timestamp],
+                )
+        self._generic_validator.verify_4xx_response(query)
+
+    def _verify_incorrect_scope(self):
+        scope = self._find_incorrect_scope()
+        if scope is None:
+            self._scenario.record_note(
+                f"{self._operation_name} incorrect scope",
+                f"{self._operation_name}: no incorrect scope available; incorrect-scope check skipped",
+            )
+            return
+
+        query = self._generic_validator.query_with_scope(scope, **self._query_kwargs)
+        with self._scenario.check(
+            f"{self._operation_name} with an incorrect scope",
+            self._pid,
+        ) as check:
+            if query.status_code != 403:
+                check.record_failed(
+                    summary=f"Expected 403, got {query.status_code}",
+                    query_timestamps=[query.request.timestamp],
+                )
+        self._generic_validator.verify_4xx_response(query)
+
+    def _verify_valid_credentials(self, scope: Scope):
+        if scope not in self._client_scopes:
+            self._scenario.record_note(
+                f"{self._operation_name} valid scope {scope.value}",
+                "scope not available; valid-scope check skipped",
+            )
+            return
+
+        query = self._generic_validator.query_with_scope(scope, **self._query_kwargs)
+        with self._scenario.check(
+            f"{self._operation_name} with valid credentials",
+            self._pid,
+        ) as check:
+            if query.status_code in (401, 403):
+                check.record_failed(
+                    summary=f"Valid credentials with scope {scope.value} were rejected with {query.status_code}",
+                    query_timestamps=[query.request.timestamp],
+                )
+
+    def _find_incorrect_scope(self) -> str | None:
+        return self._find_incorrect_f3548_scope() or self._find_incorrect_other_scope()
+
+    def _find_incorrect_f3548_scope(self) -> str | None:
+        for scope in sorted(Scope):
+            if scope not in self._valid_scopes and scope.value in self._client_scopes:
+                return scope.value
+
+    def _find_incorrect_other_scope(self) -> str | None:
+        valid_scopes = {s.value for s in self._valid_scopes}
+        for scope in sorted(self._client_scopes):
+            if scope != "" and scope not in valid_scopes:
+                return scope
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.md b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.md
new file mode 100644
index 00000000000..dfb2a27739e
--- /dev/null
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.md
@@ -0,0 +1,108 @@
+# ASTM SCD USS: Interfaces authentication test scenario
+
+## Overview
+
+Ensures that a USS rejects improperly-authenticated requests to the strategic coordination endpoints required by **[astm.f3548.v21.USS0105,1](../../../../requirements/astm/f3548/v21.md)**, **[astm.f3548.v21.USS0105,3](../../../../requirements/astm/f3548/v21.md)**, and **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+## Resources
+
+### tested_uss
+
+[`FlightPlannerResource`](../../../../resources/flight_planning/flight_planners.py) for the USS under test.
+
+### utm_auth
+
+[`AuthAdapterResource`](../../../../resources/communications/auth_adapter.py) used to obtain credentials when acting as a USS to call the endpoints of the USS under test.
+
+### dss
+
+[`DSSInstanceResource`](../../../../resources/astm/f3548/v21/dss.py) used to find the operational intent reference created by the USS under test, which provides the USS base URL.
+
+### flight_intents
+
+[`FlightIntentsResource`](../../../../resources/flight_planning/flight_intents_resource.py) providing `flight_1`, a nominal flight planned by the USS under test so that its base URL can be discovered.
+
+## Setup test case
+
+This test case sets up the rest of the scenario by collecting the USS base URL for the USS under test.
+
+### Successfully plan flight test step
+
+uss_qualifier instructs the USS under test to plan a flight, queries the DSS for the resulting operational intent reference, and records the USS base URL from that reference for use in the rest of this scenario.
+
+#### [Plan successfully](../../../flight_planning/plan_flight_intent.md)
+
+#### [Validate operational intent is shared](../validate_shared_operational_intent.md)
+
+## Endpoint authorization test case
+
+This test case ensures that the USS properly authenticates requests to its strategic coordination endpoints.
+
+### Get operational intent details authentication test step
+
+uss_qualifier queries the USS under test's getOperationalIntentDetails endpoint for an arbitrary operational intent ID using several kinds of credentials not permitted by [the OpenAPI specification](https://github.com/astm-utm/Protocol/blob/v1.0.0/utm.yaml#L3471-L3473).
+
+#### ⚠️ Get operational intent details with missing credentials check
+
+If the USS under test allows the fetching of operational intent details without any credentials being presented, it is in violation of **[astm.f3548.v21.USS0105,1](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Get operational intent details with invalid credentials check
+
+If the USS under test allows the fetching of operational intent details with credentials that are well-formed but invalid, it is in violation of **[astm.f3548.v21.USS0105,1](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Get operational intent details with an incorrect scope check
+
+If the USS under test allows the fetching of operational intent details with valid credentials but an incorrect scope, it is in violation of **[astm.f3548.v21.USS0105,1](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Unauthorized requests return the proper error message body check
+
+If, for any of the rejected requests above, the USS under test does not return a proper error message body, it fails to properly implement the OpenAPI specification that is part of **[astm.f3548.v21.USS0105,1](../../../../requirements/astm/f3548/v21.md)**.
+
+### Notify operational intent details changed authentication test step
+
+uss_qualifier sends the USS under test's notifyOperationalIntentDetailsChanged endpoint a notification that an arbitrary operational intent was removed, using several kinds of credentials not permitted by [the OpenAPI specification](https://github.com/astm-utm/Protocol/blob/v1.0.0/utm.yaml#L3610-L3612).
+
+#### ⚠️ Notify operational intent details changed with missing credentials check
+
+If the USS under test accepts an operational intent details change notification without any credentials being presented, it is in violation of **[astm.f3548.v21.USS0105,3](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Notify operational intent details changed with invalid credentials check
+
+If the USS under test accepts an operational intent details change notification with credentials that are well-formed but invalid, it is in violation of **[astm.f3548.v21.USS0105,3](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Notify operational intent details changed with an incorrect scope check
+
+If the USS under test accepts an operational intent details change notification with valid credentials but an incorrect scope, it is in violation of **[astm.f3548.v21.USS0105,3](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Unauthorized requests return the proper error message body check
+
+If, for any of the rejected requests above, the USS under test does not return a proper error message body, it fails to properly implement the OpenAPI specification that is part of **[astm.f3548.v21.USS0105,3](../../../../requirements/astm/f3548/v21.md)**.
+
+### Make USS report authentication test step
+
+uss_qualifier submits a dummy report to the USS under test's makeUssReport endpoint using several kinds of credentials, both permitted and not permitted by [the OpenAPI specification](https://github.com/astm-utm/Protocol/blob/v1.0.0/utm.yaml#L3822-L3832).
+
+#### ⚠️ Make USS report with missing credentials check
+
+If the USS under test accepts a request to make a USS report without any credentials being presented, it is in violation of **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Make USS report with invalid credentials check
+
+If the USS under test accepts a request to make a USS report with credentials that are well-formed but invalid, it is in violation of **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Make USS report with an incorrect scope check
+
+If the USS under test accepts a request to make a USS report with valid credentials but an incorrect scope, it is in violation of **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Unauthorized requests return the proper error message body check
+
+If, for any of the rejected requests above, the USS under test does not return a proper error message body, it fails to properly implement the OpenAPI specification that is part of **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+#### ⚠️ Make USS report with valid credentials check
+
+If the USS under test rejects a request to make a USS report with a 401 or 403 when valid credentials with an appropriate scope are presented, it is in violation of **[astm.f3548.v21.USS0105,4](../../../../requirements/astm/f3548/v21.md)**.
+
+## Cleanup
+
+### ⚠️ Successful flight deletion check
+**[interuss.automated_testing.flight_planning.DeleteFlightSuccess](../../../../requirements/interuss/automated_testing/flight_planning.md)**
diff --git a/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.py b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.py
new file mode 100644
index 00000000000..5e8c05bf4d7
--- /dev/null
+++ b/monitoring/uss_qualifier/scenarios/astm/utm/uss_authentication/scd_authentication_validation.py
@@ -0,0 +1,247 @@
+import uuid
+
+import arrow
+from implicitdict import StringBasedDateTime
+from uas_standards.astm.f3548.v21.api import (
+    OPERATIONS,
+    ErrorReport,
+    ExchangeRecord,
+    ExchangeRecordRecorderRole,
+    OperationalIntentReference,
+    OperationID,
+    PutOperationalIntentDetailsParameters,
+    SubscriptionState,
+    Time,
+)
+from uas_standards.astm.f3548.v21.constants import Scope
+
+from monitoring.monitorlib.clients.flight_planning.flight_info import (
+    AirspaceUsageState,
+    UasState,
+)
+from monitoring.monitorlib.clients.flight_planning.flight_info_template import (
+    FlightInfoTemplate,
+)
+from monitoring.monitorlib.fetch import QueryType
+from monitoring.monitorlib.infrastructure import (
+    utm_client_session_factory,
+)
+from monitoring.uss_qualifier.resources.astm.f3548.v21.dss import (
+    DSSInstanceResource,
+)
+from monitoring.uss_qualifier.resources.astm.f3548.v21.uss import (
+    USSInstance,
+)
+from monitoring.uss_qualifier.resources.communications import AuthAdapterResource
+from monitoring.uss_qualifier.resources.flight_planning import (
+    FlightIntentsResource,
+    FlightPlannerResource,
+)
+from monitoring.uss_qualifier.resources.flight_planning.flight_intent_validation import (
+    ExpectedFlightIntent,
+    validate_flight_intent_templates,
+)
+from monitoring.uss_qualifier.scenarios.astm.utm.test_steps import (
+    OpIntentValidator,
+)
+from monitoring.uss_qualifier.scenarios.astm.utm.uss_authentication.endpoint_auth_validator import (
+    EndpointAuthValidator,
+)
+from monitoring.uss_qualifier.scenarios.flight_planning.test_steps import (
+    cleanup_flights,
+    plan_flight,
+)
+from monitoring.uss_qualifier.scenarios.scenario import (
+    ScenarioCannotContinueError,
+    TestScenario,
+)
+from monitoring.uss_qualifier.suites.suite import ExecutionContext
+
+
+class SCDAuthenticationValidation(TestScenario):
+    """
+    A scenario that verifies that a USS properly authenticates requests to the
+    strategic coordination endpoints required by ASTM F3548-21 USS0105,1, 3,
+    and 4 with the appropriate status code and error response body.
+    """
+
+    def __init__(
+        self,
+        tested_uss: FlightPlannerResource,
+        utm_auth: AuthAdapterResource,
+        dss: DSSInstanceResource,
+        flight_intents: FlightIntentsResource,
+    ):
+        super().__init__()
+        self.tested_uss = tested_uss
+        self.utm_auth = utm_auth
+        self.flight_1 = self._init_flight_template(flight_intents=flight_intents)
+        self.dss = dss.get_instance(
+            {
+                Scope.StrategicCoordination: "search for operational intent references to obtain USS base URL"
+            }
+        )
+        self.utm_auth.assert_scopes_available(
+            scopes_required={
+                Scope.StrategicCoordination: "act as a peer USS calling the USS under test"
+            },
+            consumer_name=f"{self.__class__.__name__} test scenario",
+        )
+
+    def _init_flight_template(
+        self, flight_intents: FlightIntentsResource
+    ) -> FlightInfoTemplate:
+        templates = flight_intents.get_flight_intents()
+        expected_flight_intents = [
+            ExpectedFlightIntent(
+                "flight_1",
+                "Flight 1",
+                usage_state=AirspaceUsageState.Planned,
+                uas_state=UasState.Nominal,
+            ),
+        ]
+        try:
+            validate_flight_intent_templates(templates, expected_flight_intents)
+        except ValueError as e:
+            raise ValueError(
+                f"`{self.me()}` TestScenario requirements for flight_intents not met: {e}"
+            )
+        return templates["flight_1"]
+
+    def run(self, context: ExecutionContext):
+        self.begin_test_scenario(context)
+        self.record_note("Tested USS", self.tested_uss.participant_id)
+
+        self.begin_test_case("Setup")
+        self.begin_test_step("Successfully plan flight")
+        oi_ref = self._resolve_oi_ref()
+        uss = self._resolve_uss(oi_ref)
+        self.record_note("USS base URL", uss.base_url)
+        self.end_test_step()
+        self.end_test_case()
+
+        self.begin_test_case("Endpoint authorization")
+
+        self.begin_test_step("Get operational intent details authentication")
+        self._verify_get_oi_details(uss)
+        self.end_test_step()
+
+        self.begin_test_step("Notify operational intent details changed authentication")
+        self._verify_notify_oi_details_changed(uss)
+        self.end_test_step()
+
+        self.begin_test_step("Make USS report authentication")
+        self._verify_make_uss_report(uss)
+        self.end_test_step()
+
+        self.end_test_case()
+
+        self.end_test_scenario()
+
+    def _resolve_oi_ref(self) -> OperationalIntentReference | None:
+        flight = self.flight_1.resolve(self.time_context.evaluate_now())
+        with OpIntentValidator(
+            self,
+            self.tested_uss.client,
+            self.dss,
+            flight.basic_information.area.bounding_volume.to_f3548v21(),
+        ) as validator:
+            _, _, as_planned = plan_flight(
+                self,
+                self.tested_uss.client,
+                flight,
+            )
+            return validator.expect_shared(as_planned)
+
+    def _resolve_uss(self, oi_ref: OperationalIntentReference | None) -> USSInstance:
+        if oi_ref is None:
+            raise ScenarioCannotContinueError(
+                "Could not find the operational intent reference created by the USS under test"
+            )
+
+        base_url = oi_ref.uss_base_url
+        return USSInstance(
+            participant_id=self.tested_uss.participant_id,
+            base_url=base_url,
+            client=utm_client_session_factory.get_session(
+                base_url, self.utm_auth.adapter
+            ),
+        )
+
+    def _verify_get_oi_details(self, uss: USSInstance):
+        op = OPERATIONS[OperationID.GetOperationalIntentDetails]
+        EndpointAuthValidator(
+            scenario=self,
+            operation_name="Get operational intent details",
+            auth_target=uss,
+            client_scopes=self.utm_auth.scopes,
+            valid_scopes=[Scope.StrategicCoordination],
+            query_kwargs=dict(
+                verb=op.verb,
+                url=op.path.format(entityid=str(uuid.uuid4())),
+                query_type=QueryType.F3548v21USSGetOperationalIntentDetails,
+                participant_id=uss.participant_id,
+            ),
+        ).verify_endpoint_authentication()
+
+    def _verify_notify_oi_details_changed(self, uss: USSInstance):
+        op = OPERATIONS[OperationID.NotifyOperationalIntentDetailsChanged]
+        EndpointAuthValidator(
+            scenario=self,
+            operation_name="Notify operational intent details changed",
+            auth_target=uss,
+            client_scopes=self.utm_auth.scopes,
+            valid_scopes=[Scope.StrategicCoordination],
+            query_kwargs=dict(
+                verb=op.verb,
+                url=op.path,
+                query_type=QueryType.F3548v21USSNotifyOperationalIntentDetailsChanged,
+                participant_id=uss.participant_id,
+                json=PutOperationalIntentDetailsParameters(
+                    operational_intent_id=str(uuid.uuid4()),
+                    subscriptions=[
+                        SubscriptionState(
+                            subscription_id=str(uuid.uuid4()),
+                            notification_index=0,
+                        )
+                    ],
+                ),
+            ),
+        ).verify_endpoint_authentication()
+
+    def _verify_make_uss_report(self, uss: USSInstance):
+        op = OPERATIONS[OperationID.MakeUssReport]
+        EndpointAuthValidator(
+            scenario=self,
+            operation_name="Make USS report",
+            auth_target=uss,
+            client_scopes=self.utm_auth.scopes,
+            test_valid_credentials=True,
+            valid_scopes=[
+                Scope.StrategicCoordination,
+                Scope.ConstraintManagement,
+                Scope.ConstraintProcessing,
+                Scope.ConformanceMonitoringForSituationalAwareness,
+                Scope.AvailabilityArbitration,
+            ],
+            query_kwargs=dict(
+                verb=op.verb,
+                url=op.path,
+                query_type=QueryType.F3548v21USSMakeUssReport,
+                participant_id=uss.participant_id,
+                json=ErrorReport(
+                    exchange=ExchangeRecord(
+                        url=(uss.base_url + op.path),
+                        method=op.verb,
+                        recorder_role=ExchangeRecordRecorderRole.Client,
+                        request_time=Time(value=StringBasedDateTime(arrow.utcnow())),
+                        problem="This is a dummy record created by the USS qualifier's authentication tests. This failure is expected.",
+                    ),
+                ),
+            ),
+        ).verify_endpoint_authentication()
+
+    def cleanup(self):
+        self.begin_cleanup()
+        cleanup_flights(self, [self.tested_uss.client])
+        self.end_cleanup()
diff --git a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
index 70649e62721..7b7135cc137 100644
--- a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
+++ b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.md
@@ -20,13 +20,15 @@
 9. Action generator: [`action_generators.flight_planning.FlightPlannerCombinations`](../../../action_generators/flight_planning/planner_combinations.py)
     1. Scenario: [Awareness of relevant operational intents](../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md) ([`scenarios.astm.utm.subscription_notifications.ReceiveNotificationsForAwareness`](../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.py))
 10. Action generator: [`action_generators.flight_planning.FlightPlannerCombinations`](../../../action_generators/flight_planning/planner_combinations.py)
-    1. Scenario: [Off-Nominal planning: down USS](../../../scenarios/astm/utm/off_nominal_planning/down_uss.md) ([`scenarios.astm.utm.DownUSS`](../../../scenarios/astm/utm/off_nominal_planning/down_uss.py))
+    1. Scenario: [ASTM SCD USS: Interfaces authentication](../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md) ([`scenarios.astm.utm.uss_authentication.scd_authentication_validation.SCDAuthenticationValidation`](../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.py))
 11. Action generator: [`action_generators.flight_planning.FlightPlannerCombinations`](../../../action_generators/flight_planning/planner_combinations.py)
+    1. Scenario: [Off-Nominal planning: down USS](../../../scenarios/astm/utm/off_nominal_planning/down_uss.md) ([`scenarios.astm.utm.DownUSS`](../../../scenarios/astm/utm/off_nominal_planning/down_uss.py))
+12. Action generator: [`action_generators.flight_planning.FlightPlannerCombinations`](../../../action_generators/flight_planning/planner_combinations.py)
     1. Scenario: [Off-Nominal planning: down USS with equal priority conflicts not permitted](../../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.md) ([`scenarios.astm.utm.DownUSSEqualPriorityNotPermitted`](../../../scenarios/astm/utm/off_nominal_planning/down_uss_equal_priority_not_permitted.py))
-12. Scenario: [ASTM F3548 flight planners preparation](../../../scenarios/astm/utm/prep_planners.md) ([`scenarios.astm.utm.PrepareFlightPlanners`](../../../scenarios/astm/utm/prep_planners.py))
-13. Scenario: [ASTM F3548 makeUssReport](../../../scenarios/astm/utm/make_uss_report.md) ([`scenarios.astm.utm.make_uss_report.MakeUssReport`](../../../scenarios/astm/utm/make_uss_report.py))
-14. Scenario: [ASTM F3548-21 evaluate system versions](../../../scenarios/astm/utm/versioning/evaluate_system_versions.md) ([`scenarios.astm.utm.versioning.evaluate_system_versions.EvaluateSystemVersions`](../../../scenarios/astm/utm/versioning/evaluate_system_versions.py))
-15. Scenario: [ASTM F3548 UTM aggregate checks](../../../scenarios/astm/utm/aggregate_checks.md) ([`scenarios.astm.utm.AggregateChecks`](../../../scenarios/astm/utm/aggregate_checks.py))
+13. Scenario: [ASTM F3548 flight planners preparation](../../../scenarios/astm/utm/prep_planners.md) ([`scenarios.astm.utm.PrepareFlightPlanners`](../../../scenarios/astm/utm/prep_planners.py))
+14. Scenario: [ASTM F3548 makeUssReport](../../../scenarios/astm/utm/make_uss_report.md) ([`scenarios.astm.utm.make_uss_report.MakeUssReport`](../../../scenarios/astm/utm/make_uss_report.py))
+15. Scenario: [ASTM F3548-21 evaluate system versions](../../../scenarios/astm/utm/versioning/evaluate_system_versions.md) ([`scenarios.astm.utm.versioning.evaluate_system_versions.EvaluateSystemVersions`](../../../scenarios/astm/utm/versioning/evaluate_system_versions.py))
+16. Scenario: [ASTM F3548 UTM aggregate checks](../../../scenarios/astm/utm/aggregate_checks.md) ([`scenarios.astm.utm.AggregateChecks`](../../../scenarios/astm/utm/aggregate_checks.py))
 
 ## [Checked requirements](../../README.md#checked-requirements)
 
@@ -46,7 +48,7 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,2</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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,3</a></td>
@@ -331,17 +333,17 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0015</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0020</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0025</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0030</a></td>
@@ -441,27 +443,27 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0005</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,1</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,2</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,3</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,4</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a></td>
+    <td><a href="../../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a><br><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a></td>
   </tr>
   <tr>
     <td rowspan="6" style="vertical-align:top;"><a href="../../../requirements/interuss/automated_testing/flight_planning.md">interuss<br>.automated_testing<br>.flight_planning</a></td>
@@ -472,17 +474,17 @@
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">DeleteFlightSuccess</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">ExpectedBehavior</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">FlightCoveredByOperationalIntent</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">ImplementAPI</a></td>
diff --git a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.yaml b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.yaml
index e3cc86b2efb..b61dfa6fb2b 100644
--- a/monitoring/uss_qualifier/suites/astm/utm/f3548_21.yaml
+++ b/monitoring/uss_qualifier/suites/astm/utm/f3548_21.yaml
@@ -196,6 +196,27 @@ actions:
       roles:
         - tested_uss
   on_failure: Continue
+- action_generator:
+    generator_type: action_generators.flight_planning.FlightPlannerCombinations
+    resources:
+      flight_planners: flight_planners
+      utm_auth: utm_auth?
+      dss: dss
+      non_conflicting_flights: non_conflicting_flights
+    specification:
+      action_to_repeat:
+        test_scenario:
+          scenario_type: scenarios.astm.utm.uss_authentication.scd_authentication_validation.SCDAuthenticationValidation
+          resources:
+            tested_uss: tested_uss
+            utm_auth: utm_auth
+            dss: dss
+            flight_intents: non_conflicting_flights
+        on_failure: Continue
+      flight_planners_source: flight_planners
+      roles:
+        - tested_uss
+  on_failure: Continue
 - action_generator:
     generator_type: action_generators.flight_planning.FlightPlannerCombinations
     resources:
diff --git a/monitoring/uss_qualifier/suites/faa/uft/message_signing.md b/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
index b2841ca3dd3..69cc3424fff 100644
--- a/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
+++ b/monitoring/uss_qualifier/suites/faa/uft/message_signing.md
@@ -26,7 +26,7 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,2</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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">DSS0005,3</a></td>
@@ -311,17 +311,17 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0015</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0020</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0025</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">OPIN0030</a></td>
@@ -421,27 +421,27 @@
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0005</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,1</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,2</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,3</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/astm/f3548/v21.md">USS0105,4</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a></td>
+    <td><a href="../../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a><br><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a></td>
   </tr>
   <tr>
     <td rowspan="6" style="vertical-align:top;"><a href="../../../requirements/interuss/automated_testing/flight_planning.md">interuss<br>.automated_testing<br>.flight_planning</a></td>
@@ -452,17 +452,17 @@
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">DeleteFlightSuccess</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">ExpectedBehavior</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">FlightCoveredByOperationalIntent</a></td>
     <td>Implemented</td>
-    <td><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../../requirements/interuss/automated_testing/flight_planning.md">ImplementAPI</a></td>
diff --git a/monitoring/uss_qualifier/suites/uspace/flight_auth.md b/monitoring/uss_qualifier/suites/uspace/flight_auth.md
index 9627440b25c..5059532c32a 100644
--- a/monitoring/uss_qualifier/suites/uspace/flight_auth.md
+++ b/monitoring/uss_qualifier/suites/uspace/flight_auth.md
@@ -27,7 +27,7 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,2</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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,3</a></td>
@@ -312,17 +312,17 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0015</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0020</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0025</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0030</a></td>
@@ -422,27 +422,27 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0005</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,1</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,2</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,3</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,4</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a></td>
+    <td><a href="../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a><br><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a></td>
   </tr>
   <tr>
     <td rowspan="6" style="vertical-align:top;"><a href="../../requirements/interuss/automated_testing/flight_planning.md">interuss<br>.automated_testing<br>.flight_planning</a></td>
@@ -453,17 +453,17 @@
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">DeleteFlightSuccess</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">ExpectedBehavior</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">FlightCoveredByOperationalIntent</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">ImplementAPI</a></td>
diff --git a/monitoring/uss_qualifier/suites/uspace/required_services.md b/monitoring/uss_qualifier/suites/uspace/required_services.md
index a0b9fa5f17c..bc5f7f19f2b 100644
--- a/monitoring/uss_qualifier/suites/uspace/required_services.md
+++ b/monitoring/uss_qualifier/suites/uspace/required_services.md
@@ -637,7 +637,7 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,2</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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></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/op_intent_ref_state_transitions.md">ASTM F3548-21 UTM DSS Operational Intent Reference State Transitions</a><br><a href="../../scenarios/astm/utm/dss/oir_implicit_sub_handling.md">ASTM SCD DSS: Implicit Subscription handling</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/oir_explicit_sub_handling.md">ASTM SCD DSS: Operational Intent Explicit Subscription handling</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/op_intent_ref_simple.md">ASTM SCD DSS: Operational Intent Reference Simple</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_interactions_deletion.md">ASTM SCD DSS: Subscription and entity deletion interaction</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/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</a><br><a href="../../scenarios/interuss/ovn_request/dss_ovn_request.md">OVN Request Optional Extension to ASTM F3548-21</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">DSS0005,3</a></td>
@@ -922,17 +922,17 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0015</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0020</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0025</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">OPIN0030</a></td>
@@ -1032,27 +1032,27 @@
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0005</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,1</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,2</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,3</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/astm/f3548/v21.md">USS0105,4</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a></td>
+    <td><a href="../../scenarios/astm/utm/make_uss_report.md">ASTM F3548 makeUssReport</a><br><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a></td>
   </tr>
   <tr>
     <td rowspan="6" style="vertical-align:top;"><a href="../../requirements/interuss/automated_testing/flight_planning.md">interuss<br>.automated_testing<br>.flight_planning</a></td>
@@ -1063,17 +1063,17 @@
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">DeleteFlightSuccess</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">ExpectedBehavior</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/uspace/flight_auth/validation.md">Flight authorisation validation</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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><br><a href="../../scenarios/astm/utm/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">FlightCoveredByOperationalIntent</a></td>
     <td>Implemented</td>
-    <td><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
+    <td><a href="../../scenarios/astm/utm/uss_authentication/scd_authentication_validation.md">ASTM SCD USS: Interfaces authentication</a><br><a href="../../scenarios/astm/utm/subscription_notifications/receive_notifications_for_awareness/receive_notifications_for_awareness.md">Awareness of relevant operational intents</a><br><a href="../../scenarios/astm/utm/data_exchange_validation/get_op_data_validation.md">Data Validation of GET operational intents by USS</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_higher_priority/conflict_higher_priority.md">Nominal planning: conflict with higher priority</a><br><a href="../../scenarios/astm/utm/nominal_planning/conflict_equal_priority_not_permitted/conflict_equal_priority_not_permitted.md">Nominal planning: not permitted conflict with equal priority</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/flight_intent_validation/flight_intent_validation.md">Validation of operational intents</a></td>
   </tr>
   <tr>
     <td><a href="../../requirements/interuss/automated_testing/flight_planning.md">ImplementAPI</a></td>