Unified declaration for underground works (DUPLOS) (Online service)

Bureau of Geological and Mining Research (BRGM)

DUPLOS is an online service that allows you to declare a project under Article L411-1 of the Mining Code, mandatory for drilling, drilling, excavation, underground works over 10 meters deep and for domestic drilling.

Go to the online procedure

Verified 01 February 2024 - Directorate for Legal and Administrative Information (Prime Minister)

For details, please use the practical information sheets :

J'ai réalisé une démarche administrative

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