1. In this Regulation, “adequate”, in relation to a procedure, material, device, object or any other thing, means sufficient for its intended and actual use and sufficient to protect a worker from damage to the worker’s body or health, and “adequately” has a corresponding meaning; (“adéquat”) “aquarium exhibit diver” means a diver who, at an aquarium facility, maintains underwater exhibits, conducts public presentations or monitors animal husbandry; (“plongeur d’aquarium”) “atmospheric diving” means diving where the diver is always at one atmosphere; (“plongée à pression atmosphérique”) “atmospheric diving system” means a diving system designed to withstand external pressures greater than one atmosphere while the internal pressure remains at one atmosphere and includes a one-person submarine; (“système de plongée à pression atmosphérique”) “bail-out system” means an emergency breathing mixture supply worn by a diver; (“appareil de sauvetage”) “bottom time” means the total elapsed time measured in minutes, from the time a descending diver leaves the surface to the time the diver begins final ascent, rounded to the next whole minute; (“durée de plongée”) “breathing mixture” means a mixture of gases for human respiration and includes pure oxygen; (“mélange respiratoire”) “CSA Standard” means a standard published by the Canadian Standards Association; (“norme CSA”) “decompression” means the procedure that a diver follows during the ascent from depth in order to minimize the risk of decompression sickness; (“décompression”) “deep diving” means diving to depths greater than 165 feet; (“plongée profonde”) “dive site” means a surface location at which diving personnel and equipment are located in support of the underwater work site; (“lieu de plongée”) “diver” means, (a)  an atmospheric diving system operator, and (b)  a worker who performs work underwater at any pressure greater than one atmosphere, and includes a standby diver who dives in the event of a health or safety emergency; (“plongeur”) “diver’s tender” means a competent person who assists a diver at the dive site; (“assistant de plongeur”) “diving operation” means work performed underwater by divers or work performed on the surface in support of divers, and includes underwater inspection, investigation, excavation, construction, alteration, repair or maintenance of equipment, machinery, structures or ships and the salvage of sunken property; (“opération de plongée”) “employer associated with a diving operation” means an employer of, (a)  a diver who participates in the diving operation, (b)  a standby diver who participates in the diving operation, (c)  a diver’s tender who participates in the diving operation, (d)  a diving supervisor for the diving operation, (e)  a hyperbaric chamber operator who participates in the diving operation, (f)  a life support technician who participates in the diving operation, or (g)  any other worker who participates in the diving operation at or near the dive site or underwater work site; (“employeur associé à une opération de plongée”) “hyperbaric chamber” means a pressure vessel and associated equipment designed for subjecting humans to pressures; (“caisson hyperbare”) “lifeline” means a safety rope used to tether a diver; (“ligne de sécurité”) “liveboating” means a diving operation conducted from a vessel the propeller of which is turning, whether the vessel is stationary or moving; (“plongée avec bateau-soutien”) “locked-out” means made inoperable by means that are under the direct control of the diving supervisor or a person authorized by the diving supervisor; (“cadenassé”) “man basket” means a device used to transport a diver from a height above the water surface to the surface of the water for safe entry and exit to and from the water; (“nacelle”) “mixed gas” means a breathing mixture other than air; (“mélange gazeux”) “non-saturation diving” means diving in which decompression occurs during ascent from the underwater work site; (“plongée légère”) “open (wet) bell” means a diving bell designed to be operated without a differential pressure across its hull; (“cloche de plongée ouverte”) “saturation chamber” means a hyperbaric chamber that is equipped to permit divers to remain under pressure for an unlimited period of time; (“caisson de saturation”) “saturation diving” means diving in which the decompression procedure used allows a bottom time of unlimited duration; (“plongée à saturation”) “scientific diving” means diving performed on behalf of an educational or research institution for the purpose of collecting specimens or data for scientific use; (“plongée scientifique”) “S.C.U.B.A.” means a self-contained underwater breathing apparatus; (“scaphandre autonome”) “sledding” means a diving technique in which a diver who uses S.C.U.B.A. and a dive sled is pulled through water by a vessel; (“technique de la luge”) “stage” means a device used to lower or raise a diver to or from an underwater work site but does not include an open (wet) bell, a submersible compression chamber, an atmospheric diving system or a man basket; (“ascenseur”) “standby diver” means a diver who is present at the dive site or in a submersible compression chamber and is prepared to rescue a submerged diver should rescue become necessary; (“plongeur de soutien”) “submersible compression chamber” means a hyperbaric chamber that has the capacity to transport divers at pressures greater than one atmosphere from the surface to an underwater work site and back; (“tourelle”) “surface-supplied diving” means diving where the diver is supplied with a breathing mixture through an umbilical bundle, whether or not an open (wet) bell or a submersible compression chamber is used; (“plongée non autonome”) “umbilical bundle” means a composite of hoses, wires and cables designed to supply services, such as breathing mixtures, power, heat and communications, from the surface to a diver, to an open (wet) bell or to a submersible compression chamber; (“ombilical”) “underwater work site” means the underwater location where work is performed; (“lieu de travail sous-marin”) “UXO diving operation” means a diving operation involving searching for, locating, accessing, identifying, diagnosing, limiting damage from, recovering, or finally disposing of underwater unexploded explosive ordnance or munitions; (“opération de plongée liée aux UXO”) “water control structure” includes dams, head gates, stop logs, turbine intake gates and pump intake gates. (“structure de régulation des eaux”)  O. Reg. 629/94, s. 1; O. Reg. 32/14, s. 1. PART II   GENERAL Application