Acts and Regulations

91-191 - General

Section 331
Disposition versions

Full text
Transportation through air-water interface
331(1)A diving supervisor shall ensure that diving activities are not carried out from a diving station located more than 5 m above water unless the divers are transported through the air-water interface by a suitable submersible compression chamber, stage or open diving bell.
331(2)A diving supervisor shall ensure that a hoisting device used to raise or lower a diver into the water is not used for any other purpose until after the diver is in position.
331(3)A diving supervisor shall ensure that a hoisting device used to raise or lower a submersible compression chamber, stage or open diving bell is
(a) so constructed that a brake is automatically applied when the control lever, handle or switch is not held in the operating position, and
(b) not fitted with a pawl-and-ratchet gear on which the pawl has to be disengaged before commencing raising or lowering operations.
331(4)A diving supervisor shall ensure that a stage required under subsection (1)
(a) is provided to transport a diver to an underwater work area where the depths are shallower than 55 m,
(b) is large enough to carry at least two divers with their diving equipment and associated equipment in uncramped conditions,
(c) is secure against tipping and spinning,
(d) does not contain any equipment that might interfere with a diver’s foothold or handhold, and
(e) is so constructed or equipped that the divers are secure against falling out of the stage.
2022-27
Transportation through air-water interface
331(1)A diving supervisor shall ensure that diving activities are not carried out from a diving station located more than 5 m above water unless the divers are transported through the air-water interface by a suitable submersible compression chamber, stage or open diving bell.
331(2)A diving supervisor shall ensure that a hoisting device used to raise or lower a diver into the water is not used for any other purpose until after the diver is in position.
331(3)A diving supervisor shall ensure that a hoisting device used to raise or lower a submersible compression chamber, stage or open diving bell is
(a) so constructed that a brake is automatically applied when the control lever, handle or switch is not held in the operating position, and
(b) not fitted with a pawl-and-ratchet gear on which the pawl has to be disengaged before commencing raising or lowering operations.
331(4)A diving supervisor shall ensure that a stage required under subsection (1)
(a) is provided to transport a diver to an underwater worksite where the depths are shallower than 55 m,
(b) is large enough to carry at least two divers with their diving equipment and associated equipment in uncramped conditions,
(c) is secure against tipping and spinning,
(d) does not contain any equipment that might interfere with a diver’s foothold or handhold, and
(e) is so constructed or equipped that the divers are secure against falling out of the stage.