3. The Committee of the Regions shall consist of representatives of regional and local bodies who either hold a regional or local authority electoral mandate or are politically accountable to an elected assembly.
4. The members of the Economic and Social Committee and of the Committee of the Regions shall not be bound by any mandatory instructions. They shall be completely independent in the performance of their duties, in the Union's general interest.
5. The rules referred to in paragraphs 2 and 3 governing the nature of the composition of the Committees shall be reviewed at regular intervals by the Council to take account of economic, social and demographic developments within the Union. The Council, on a proposal from the Commission, shall adopt decisions to that end.