Self-monitoring
Article 55
1. Member States shall ensure that each authority entitled to use the Prüm II framework takes the measures necessary to monitor its compliance with this Regulation and cooperates, where necessary, with the supervisory authority. Europol shall take the measures necessary to monitor its compliance with this Regulation and shall cooperate, where necessary, with the European Data Protection Supervisor. 2. Data controllers shall implement the necessary measures to effectively monitor the compliance of data processing with this Regulation, including by frequently verifying the logs referred to in Articles 18, 40 and 45. They shall cooperate, where necessary and as appropriate, with the supervisory authorities or with the European Data Protection Supervisor.