6. Frequently asked questions

Do the terms "droit des acquis" and "droit de l'antériorité" mean the same thing?

Yes, these two expressions refer to the same thing, i.e. the possibility of benefiting from an exemption from the ICPE procedure in the event of changes to the nomenclature of classified installations.

Can the prefect issue any type of special requirements for the facility concerned?

No, the prefect may not issue regulations that would entail major modifications to the structure of the facility or significant changes to its operation.

What are the consequences of the Prefect's refusal to grant acquired rights?

If the prefect refuses to grant you the benefit of acquired rights because the facility presents specific hazards and risks, you are required to submit a complete file corresponding...