1. Member States shall designate a supervisory body established in their territory or designate, upon mutual agreement with another Member State, a supervisory body established in that other Member State. That supervisory body shall be responsible for supervisory tasks in the designating Member State as regards trust services.

The supervisory bodies designated pursuant to the first subparagraph shall be given the necessary powers and adequate resources for the exercise of their tasks.

2. Member States shall notify to the Commission the names and addresses of their supervisory bodies designated pursuant to paragraph 1 and any subsequent changes thereto. The Commission shall publish a list of the notified supervisory bodies.

3. The role of the supervisory bodies designated pursuant to paragraph 1 shall be:

(a) to supervise qualified trust service providers established in the territory of the designating Member State and to ensure, by means of ex ante and ex post supervisory activities, that those qualified trust service providers and the qualified trust services that they provide meet the requirements laid down in this Regulation;