Source date: 2026-04-23
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Simplification of the contentious procedure in environmental matters Published on April 24, 2026 - Entreprendre Service Public / Directorate of Legal and Administrative Information (Prime Minister)
Decree No. 2026-302 of April 21, 2026 modifies and accelerates contentious procedures in environmental matters. Explanations.
Image 1 Credits: zhouyilu - stock.adobe.com
Decree No. 2026-302 of April 21, 2026 formalizes the intention to simplify environmental litigation and accelerate strategic projects impacting the environment.
The new provisions respect a specific scope of application and will apply to acts taken from July 1, 2026.
This simplification applies to contentious appeals directed against acts related to projects concerning:
the development of decarbonized energies (electricity production using wind mechanical energy, electricity production from photovoltaic solar energy, hydroelectric installations, geothermal sites...);
transport infrastructures;
food sovereignty;
economic and industrial sovereignty;
operations of national interest and major urban planning operations.
The acts in question are acts of the administrative authority (including refusals), extensions, or transfers, which condition "the construction, realization, commissioning, operation, modification, or extension of projects, including their associated works and tasks".
The decisions mentioned in articles R.311-1 and R.311-1-1 of the Code of Administrative Justice are not covered by the provisions of this decree.
For all relevant disputes, administrative courts of appeal are competent, in first and last instance. However, it remains possible to appeal to the Council of State.
The administrative courts of appeal have a period of 10 months to rule from the registration of the request.
The decree also specifies that:
the act must mention that the appeals filed are subject to this new contentious regime (the absence of this mention does not affect the legality of the act);
the administrative appeal does not extend the deadline for contentious appeal against the contested act;
if an administrative court puts its decision on hold to allow for the regularization of a contested act, it remains competent in first instance to resolve the dispute.
Finally, the author of the appeal must notify it to the author and the beneficiary of the decision. This notification must be made by registered letter with acknowledgment of receipt, within a period of 15 clear days: starting from the filing of the contentious appeal or the date of sending the administrative appeal.
A day that lasts from 0h to 24h. A deadline calculated this way does not take into account the day of the decision that initiated the deadline, nor the day of the deadline. If the deadline ends on a Saturday or Sunday, it is postponed to Monday. If the deadline ends on a public holiday, it is postponed by one day. Thus, for example, if a deadline ends on a Saturday and the following Monday is a public holiday, it is postponed to Tuesday.
Source: Service-Public professionals
Source date: 2026-04-23
Simplification of the contentious procedure in environmental matters Published on April 24, 2026 - Entreprendre Service Public / Directorate of Legal and Administrative Information (Prime Minister)
Decree No. 2026-302 of April 21, 2026 modifies and accelerates contentious procedures in environmental matters. Explanations.
Image 1 Credits: zhouyilu - stock.adobe.com
Decree No. 2026-302 of April 21, 2026 formalizes the intention to simplify environmental litigation and accelerate strategic projects impacting the environment.
The new provisions respect a specific scope of application and will apply to acts taken from July 1, 2026.
This simplification applies to contentious appeals directed against acts related to projects concerning:
the development of decarbonized energies (electricity production using wind mechanical energy, electricity production from photovoltaic solar energy, hydroelectric installations, geothermal sites...);
transport infrastructures;
food sovereignty;
economic and industrial sovereignty;
The acts in question are acts of the administrative authority (including refusals), extensions, or transfers, which condition "the construction, realization, commissioning, operation, modification, or extension of projects, including their associated works and tasks".
The decisions mentioned in articles R.311-1 and R.311-1-1 of the Code of Administrative Justice are not covered by the provisions of this decree.
For all relevant disputes, administrative courts of appeal are competent, in first and last instance. However, it remains possible to appeal to the Council of State.
The administrative courts of appeal have a period of 10 months to rule from the registration of the request.
The decree also specifies that:
the act must mention that the appeals filed are subject to this new contentious regime (the absence of this mention does not affect the legality of the act);
the administrative appeal does not extend the deadline for contentious appeal against the contested act;
if an administrative court puts its decision on hold to allow for the regularization of a contested act, it remains competent in first instance to resolve the dispute.
Finally, the author of the appeal must notify it to the author and the beneficiary of the decision. This notification must be made by registered letter with acknowledgment of receipt, within a period of 15 clear days: starting from the filing of the contentious appeal or the date of sending the administrative appeal.
A day that lasts from 0h to 24h. A deadline calculated this way does not take into account the day of the decision that initiated the deadline, nor the day of the deadline. If the deadline ends on a Saturday or Sunday, it is postponed to Monday. If the deadline ends on a public holiday, it is postponed by one day. Thus, for example, if a deadline ends on a Saturday and the following Monday is a public holiday, it is postponed to Tuesday.
Source: Service-Public professionals
operations of national interest and major urban planning operations.