1. Member States shall give each other mutual assistance, and shall put in place measures for effective cooperation with one another, in order to ensure the supervision of providers and the services they provide.

2. For the purposes of this Chapter, Member States shall designate one or more liaison points, the contact details of which shall be communicated to the other Member States and the Commission. The Commission shall publish and regularly update the list of liaison points.

3. Information requests and requests to carry out any checks, inspections and investigations under this Chapter shall be duly motivated, in particular by specifying the reason for the request. Information exchanged shall be used only in respect of the matter for which it was requested.

4. In the event of receiving a request for assistance from competent authorities in another Member State, Member States shall ensure that providers established in their territory supply their competent authorities with all the information necessary for supervising their activities in compliance with their national laws.

5. In the event of difficulty in meeting a request for information or in carrying out checks, inspections or investigations, the Member State in question shall rapidly inform the requesting Member State with a view to finding a solution.