S-2.1, r. 13 - Regulation respecting occupational health and safety

Full text
312.21. Decompression tables: Except in saturation diving, dives, ascents and rest periods must comply with the decompression tables of the Defence and Civil Institute of Environmental Medicine of the Department of National Defence of Canada corresponding to the breathing mixture used.
Except in case of emergency, a diver must never be in a situation of undue exposure defined in those tables.
O.C. 425-2010, s. 3.