5. A national supervisory authority may be joined with another regulatory authority, such as a national competent authority or national competition authority as referred to in Article 11 of Council Regulation (EC) No 1/2003 (19), provided that the decisions related to the tasks conferred on the national supervisory authority under this Regulation are taken independently from other tasks conferred on the joint authority. In that case, the joint authority shall fulfil the independence requirements set out in this Article.
The national supervisory authority shall be represented in matters related to the tasks set out in Article 5 of this Regulation in a manner that ensures the independence of its decisions.