At the end of the public enquiry, the regional development plan, possibly amended to take account of the opinions expressed and the results of the enquiry, is adopted by the deliberative assembly of the region, department or local authority.
The draft adopted in this way is forwarded to the Minister responsible for town planning and is approved by decree in the Conseil d’Etat.
When the illegality of certain guidelines or provisions of the plan, or the prejudice they are likely to cause to national interests, is an obstacle to its approval, the minister responsible for town planning, after consulting the Council of State, informs the deliberating assembly so that it can make the necessary changes to these guidelines or provisions by means of a new deliberation.