In mines and quarries with underground installations accessible to workers, as well as in their outbuildings, labour inspection missions are carried out by civil servants authorised for this purpose by the regional directors of the environment, development and housing from among the agents placed under their authority. These duties are carried out under the authority of the Minister of Labour.
When they carry out their duties in more than one region, officials are authorised for each of these regions by the regional director of the environment, planning and housing with territorial jurisdiction, with the agreement of the regional director of the environment, planning and housing to whom they report.