The Council, acting unanimously on a proposal from the Commission, shall, on the basis of the experience acquired under the association of the countries and territories with the Union and of the principles set out in the Treaties, lay down provisions as regards the detailed rules and the procedure for the association of the countries and territories with the Union. Where the provisions in question are adopted by the Council in accordance with a special legislative procedure, it shall act unanimously on a proposal from the Commission and after consulting the European Parliament.