1. The regulatory context

Since March 2017, in the interests of simplification and consistency, French legislation has adopted the principle of a single authorization covering the various environmental aspects of a single project, which was not previously the case. The related regulatory texts are mainly:

• order no. 2017-80 of January 26, 2017;

• decree no. 2017-81 of January 26, 2017;

• decree no. 2017-82 of January 26, 2017.

The synoptic diagram presented in figure 1 details the entire process