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Canada Oil and Gas Diving Regulations (SOR/88-600)

Regulations are current to 2020-11-02

PART VSupervisors (continued)

Restrictions Respecting Dive Sites

  •  (1) No diving supervisor shall permit a diver supervised by the supervisor to make a dive that is part of a diving operation from

    • (a) a place referred to in paragraph 6(1)(b) that is unsuitable;

    • (b) a craft that has insufficient power or stability for the safe conduct of the dive;

    • (c) a dive site located more than 2 m above the water unless a suitable skip, diving bell or diving submersible is used to transport the diver through the air-water interface;

    • (d) a dynamically positioned craft unless

      • (i) the craft has been operating in the dynamically positioned mode for at least 30 minutes before the diver enters the water,

      • (ii) the range of surge or sway movement of the water at the dive site is less than 80 per cent of the maximum operational capacity limit of the craft,

      • (iii) a skip or a diving bell is positioned as close as possible to the diver’s underwater work site,

      • (iv) all reasonable precautions are taken to prevent any umbilical used in the dive from coming into contact with any propeller or manoeuvring unit of the craft,

      • (v) any change of heading or positioning of the craft, at any time a diver involved in the diving operation is in the water, is made only after the diving supervisor has granted permission for the change and the diver has been notified, and

      • (vi) the craft complies with the requirements of section 25; and

    • (e) a craft that is under way, except in the case of an emergency.

  • (2) For the purposes of subsection (1), a craft that is operating in the dynamically positioned mode and that complies with the requirements of section 25 is not considered to be under way.

  • (3) No supervisor shall conduct a diving operation unless the person in charge of the craft or installation from which the diving operation is to be conducted has been notified of the proposed diving operation.

Restricted Use of SCUBA

 No diving supervisor shall use or permit to be used SCUBA in a diving operation supervised by the supervisor except where any other diving technique is impracticable or hazardous to use and unless

  • (a) the diving operation is conducted in water that is less than 20 m deep;

  • (b) the diving operation can be completed without the need for decompression;

  • (c) the diver using SCUBA is connected to a lifeline or, where the use of a lifeline is impracticable,

    • (i) the diver is in contact, visually or orally, with another diver who is in the water, securely connected to a lifeline and assisted by an attendant at the dive site, or

    • (ii) some other effective method of ensuring that diver’s safety is provided;

  • (d) there is a practical means of communication between the supervisor and the diver using SCUBA and there is a means of oral communication between the supervisor and other personnel involved in the diving operation;

  • (e) the diving crew for the duration of the diving operation includes a minimum of one supervisor, one diver, one stand-by diver and as many attendants as the supervisor considers necessary to ensure the safety of the divers involved in the diving operation; and

  • (f) all applicable provisions of these Regulations are complied with.

Restrictions Respecting Category I Diving Operations

 No diving supervisor shall conduct a category I diving operation, other than a diving operation in which SCUBA is used, unless

  • (a) a suitable skip is used to transport the divers involved in the diving operation to an underwater work site that is 20 m or more in depth and, where practicable, to an underwater work site that is less than 20 m in depth;

  • (b) an umbilical directly from the surface or via a skip is used to supply the appropriate breathing mixture to the divers involved in the dive that is part of the diving operation;

  • (c) the supervisor is in oral communication with any divers, stand-by divers and attendants involved in the diving operation at all times during the diving operation;

  • (d) the supervisor has a means of monitoring the depth of each diver involved in the diving operation and the pressure of the breathing mixture being supplied to each diver and stand-by diver involved in the dive;

  • (e) each diver involved in the dive is securely connected to a lifeline; and

  • (f) the diving crew for the duration of the diving operation, includes one diving supervisor, one diver and a minimum of

    • (i) one stand-by diver equipped with an umbilical at least 3 m longer than the umbilical of the diver for whom the stand-by diver acts as stand-by,

    • (ii) one attendant at the dive site of the diving operation, and

    • (iii) as many additional attendants as the supervisor considers necessary to ensure the safety of the divers involved in the diving operation.

Restrictions Respecting Category II Diving Operations

 No diving supervisor shall conduct a category II diving operation unless

  • (a) the requirements referred to in paragraphs 42(c) to (e) are complied with;

  • (b) a diving bell or diving submersible is used for any descent or ascent of a diver to or from the underwater work site of the diving operation;

  • (c) the diving supervisor has a means of monitoring the internal pressure of any diving bell or surface compression chamber or the compression chamber of any diving submersible used in the diving operation; and

  • (d) the diving crew, for the duration of the diving operation, includes one diving supervisor and a minimum of

    • (i) two divers who are in the diving bell or diving submersible used in the diving operation, one of whom is equipped with an umbilical at least 3 m longer than the umbilical of the diver for whom the stand-by diver acts as stand-by,

    • (ii) one additional stand-by diver and one attendant at the dive site of the diving operation, and

    • (iii) as many additional attendants as the supervisor considers necessary to ensure the safety of the divers involved in the diving operation.

Restrictions Respecting Category III Diving Operations

  •  (1) No diving supervisor shall, in a saturation dive supervised by the supervisor, permit the total dive time of any diver involved in the dive to exceed 31 days.

  • (2) No diving supervisor shall conduct a category III diving operation unless the diving crew, for the duration of the dive, includes the persons referred to in paragraph 43(d) and as many additional specialists and life-support technicians as the diving supervisor considers necessary to ensure the safety of the divers involved in the dive.

Restriction Respecting Diving Supervisors

 No diving supervisor shall make a dive while supervising a diving operation, even in the case of an emergency.

Additional Duties

  •  (1) Where a skip, diving bell, diving submersible or ADS used in a diving operation is being lowered into or raised from the water, the supervisor of the diving operation shall ensure that the skip, diving bell, diving submersible or ADS, as the case may be, is continuously within the supervisor’s vision, either directly or by any other means.

  • (2) Where, in a diving operation, a diving bell is coupled with a surface compression chamber by means of a clamping mechanism, the supervisor of the diving operation shall permit only a person who is familiar with the operational procedures designed for the clamping mechanism to operate that clamping mechanism.

  • (3) Where, in a diving operation, a person is transferred to or from a diving bell, the supervisor of the diving operation shall ensure that any surface compression chambers used in the diving operation but not used in the transfer are, during the transfer, isolated from the surface compression chambers used in the transfer.

  • (4) Where a diver involved in a diving operation exhibits any unusual psychological or physiological symptoms or any severe symptoms of decompression sickness, the diving supervisor of the diving operation shall advise the specialized diving doctor referred to in paragraph 4(3)(d) and the operator responsible for that diving operation of those symptoms and shall supervise any therapeutic recompression or decompression of the diver.

  • (5) A diving supervisor shall take all reasonable precautions to ensure that, except in the event of the evacuation of a diver during a diving operation supervised by the diving supervisor,

    • (a) a diver involved in the diving operation who has completed a dive does not fly in an aircraft

      • (i) for 12 hours following a non-decompression dive,

      • (ii) for 24 hours following decompression, or

      • (iii) for such longer period as the diving supervisor considers necessary to ensure that the diver does not suffer decompression sickness; and

    • (b) a diver involved in the diving operation who has completed a saturation dive remains under observation in the general area of the decompression chamber for at least 24 hours after decompression or such longer period as is sufficient in the opinion of the diving supervisor to ensure the well-being of the diver.

  • (6) A diving supervisor shall take all reasonable precautions to ensure that, in the evacuation of a person during a diving operation supervised by the supervisor, a person involved in the diving operation who has completed decompression within the preceding 24 hours does not fly in an aircraft at an altitude greater than is operationally necessary in the circumstances.

 
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