--- /dev/null
+@startuml
+
+participant Participant
+participant ACM_Runtime
+database ACM_Database
+
+Participant -> Participant: Uninitialize all ACM Element Instances running on Participant\n(See Instantiation Dialogues)
+activate Participant
+deactivate Participant
+
+Participant -> ACM_Runtime: [ASYNC] Deregister
+ACM_Runtime -> ACM_Database: Delete Participant Registration
+ACM_Runtime -> ACM_Database: Set Participant State as OFFLINE
+Participant <- ACM_Runtime: [ASYNC] Deregistration Accepted
+
+ACM_Runtime -> ACM_Runtime: Mark all ACM Element Instances\nrunning on Participant as OFFLINE
+activate ACM_Runtime
+deactivate ACM_Runtime
+
+@enduml