diff --git a/OpenAPI/coslaNrm.yaml b/OpenAPI/coslaNrm.yaml
index 82e2175098e557f31838e2b72626e7a9424823b6..8d9d8788dbace179c3d87a076dcca688f6d06360 100755
--- a/OpenAPI/coslaNrm.yaml
+++ b/OpenAPI/coslaNrm.yaml
@@ -71,6 +71,19 @@ components:
       type: array
       items:
          $ref: '#/components/schemas/AssuranceTarget'
+     
+    AttributeNameList:
+      type: array
+      items:
+         type: string
+          
+    ACCLDisallowedAttributes:
+      type: object
+      properties:
+        managedEntityIdentifier:
+          $ref: 'comDefs.yaml#/components/schemas/Dn'
+        attributeNameList:
+          $ref: '#/components/schemas/AttributeNameList'
 
     AssuranceScope:
       type: object
@@ -78,7 +91,6 @@ components:
         taiList:
           $ref: 'nrNrm.yaml#/components/schemas/TaiList'
 
-
 #-------- Definition of concrete IOCs --------------------------------------------
 
     SubNetwork-Single:
@@ -123,6 +135,8 @@ components:
                       $ref: 'comDefs.yaml#/components/schemas/AdministrativeState'
                     controlLoopLifeCyclePhase:
                       $ref: '#/components/schemas/ControlLoopLifeCyclePhase'
+                    aCCLDisallowedList:
+                      $ref: '#/components/schemas/ACCLDisallowedAttributes'
             AssuranceGoal:
               $ref: '#/components/schemas/AssuranceGoal-Multiple'