Judgment_paragraph 52 · Facebook Ireland Ltd and Others v Gegevensbeschermingsautoriteit (C-645/19)

52It follows more specifically from Articles 56 and 60 of Regulation 2016/679 that, with respect to ‘cross-border processing’, within the meaning of Article 4, point (23), of that regulation, and subject to Article 56(2) thereof, the various national supervisory authorities concerned must cooperate, in accordance with the procedure laid down in those provisions, in order to reach a consensus and a single decision, which is binding on all those authorities and with which decision the controller must ensure compliance as regards processing activities undertaken in the context of all its establishments within the European Union. Further, Article 61(1) of that regulation obliges the supervisory authorities, inter alia, to provide each other with relevant information and mutual assistance in order to implement and apply that regulation in a consistent manner throughout the European Union. Article 63 of Regulation 2016/679 states that it was for that purpose that provision was made for the consistency mechanism, set out in Articles 64 and 65 of that regulation (judgment of 24 September 2019, Google (Territorial scope of de‑referencing), C‑507/17, EU:C:2019:772, paragraph 68).