Article R4461-11 of the French Labour Code
When the head of the user company calls on an external company or a self-employed worker, he shall ensure the general coordination of the prevention measures he takes and those taken by the head of the external company or the self-employed worker, in accordance with the provisions of articles R. 4511-1 et seq. He shall pass on the specific instructions applicable to the establishment in terms of hyperbaric risk prevention…