Article R4534-136 of the French Labour Code
Where workers are exposed to the risk of drowning, the employer shall, in addition to the safety measures prescribed by this chapter, take the following special protection measures: 1° Workers exposed to the risk shall be provided with lifejackets; 2° An alarm signal shall be provided; 3° Where appropriate, at least one boat, manned by seamen who know how to swim and dive, shall be permanently placed near the most…