By way of derogation from the provisions of Book I of the Code de l’expropriation pour cause d’utilité publique and Chapter III of Title II of Book I of the Code de l’environnement, when a minor modification to one or more of the protection perimeters or related easements mentioned in article L. 1321-2 of this Code is required, the public enquiry is conducted in accordance with a simplified procedure, defined by decree in the Conseil d’Etat and adapted according to the type of modification. This simplified procedure does not apply when the modification extends the immediate protection perimeter.
When the modification only concerns one or some of the communes included in the protection perimeter(s), the public enquiry file may, by way of derogation from the provisions of Book I of the Code de l’expropriation pour cause d’utilité publique and Chapter III of Title II of Book I of the Code de l’environnement, be made available to the public only in the territory of the commune(s) concerned.