1 Where two or more controllers jointly determine the purposes and means of processing, they shall be joint controllers. 2 They shall in a transparent manner determine their respective responsibilities for compliance with the obligations under this Regulation, ...

1 The arrangement referred to in paragraph 1 shall duly reflect the respective roles and relationships of the joint controllers vis-à-vis the data subjects. 2 The essence of the arrangement shall be made available to the data subject.

Irrespective of the terms of the arrangement referred to in paragraph 1, the data subject may exercise his or her rights under this Regulation in respect of and against each of the controllers.