PART IIIDiving Contractors (continued)
Craft in Dynamically Positioned Mode
25 No diving contractor who conducts a diving operation shall use or permit to be used a craft in the dynamically positioned mode in the diving operation unless that use was specifically approved in accordance with section 5 for the diving program of which the diving operation is a part and the following requirements are complied with:
(a) the craft is so designed and constructed that
(i) more than one prime mover is available for each fore, aft and thwartship thruster,
(ii) in the event of the failure of any prime mover or manoeuvring unit of the craft, the position of the craft can be maintained during the period it would take for the safe recovery of divers,
(iii) the arrangement of the thrusters and their size and number enable, in the event of the loss of any thruster of the craft, the heading and the position of the craft to be maintained within the environmental and operational capacity limits of that craft for the time it takes to safely recover any skip, diving bell or ADS used in the diving operation,
(iv) for each manoeuvring unit necessary to maintain the craft in the dynamically positioned mode, other than the propellers and energy plant units, there is a reserve duplicate unit and an automatic and a manual system to switch from the on-line unit to the duplicate unit,
(v) the supervisor on duty at the diving station on the craft can, by means of an alarm system connecting the bridge of the craft to the diving station on the craft, be kept informed by the person who controls the dynamic positioning system of any station-keeping problems or any other problems that might affect the safety of the diving operation,
(vi) a computer system controls the dynamic positioning of the craft and another independent, duplicate computer system is available to take over control automatically in the event of failure of the on-line computer system,
(vii) there are on line at least two reference systems independently linked into each computer system referred to in subparagraph (vi),
(b) during any time that a person involved in the diving operation is in the water
(i) a person who is responsible for the navigation of the craft and a person who is responsible for the control of the dynamic positioning system are in the control room of the craft,
(ii) the machinery spaces of the craft, except those in the pontoons of a semi-submersible craft, are manned, and
(iii) in any one manoeuvre, the craft is not moved more than 5 m or the heading of the craft is not changed more than 5°, whichever is the lesser movement in relation to the location of the dive site of the diving operation; and
(c) any person who is responsible for the control of the dynamic positioning system of the craft has at least six months experience using both the manual and the automatic modes of that particular system or, where that is impracticable, of a similar system, and at least two weeks briefing by the designer or manufacturer of the craft on the behaviour and hydrodynamics of that craft when operating in the dynamically positioned mode.
PART IVDiving Safety Specialists
26 (1) No operator, pursuant to paragraph 6(1)(a), or diving contractor, pursuant to subsection 9(1), shall engage the services of a person as a diving safety specialist unless the person holds a diving supervisor’s certificate that is issued pursuant to section 71 and that is appropriate to the category of dive in respect of which that person will be giving advice and
(a) has passed a test that
(b) until December 31, 1990, has satisfied the Minister that the person’s knowledge is equivalent to the knowledge described in paragraph (a).
(2) A person who has been engaged as a diving safety specialist for a diving program by an operator, pursuant to paragraph 6(1)(a), shall
(a) advise the operator on all safety aspects of the diving program including
(i) the application for authorization, under paragraph 3.2(1)(b) of the Act, for the diving program,
(ii) any application made by the operator for authorization pursuant to subsection 12.2(1) of the Act, and
(iii) any decision by the operator to interrupt or discontinue the diving program or any portion of the diving program for safety reasons; and
(b) be available on a 24 hour a day basis to advise any person involved in the diving program, including persons making decisions affecting the safety of divers involved in the diving program, on the safety aspects of the diving program.
(3) A person who has been engaged as a diving safety specialist for a diving operation by a diving contractor, pursuant to subsection 9(1), shall
(a) advise the diving contractor on all safety aspects of the diving operation; and
(b) be available on a 24 hour a day basis to advise any person involved in the diving operation, including any person making decisions affecting the safety of divers involved in the diving operation, on all safety aspects of the diving operation.
(4) A diving safety specialist referred to in subsection (2) or (3) shall, in advising any person pursuant to those subsections, take into account as a primary consideration the safety of any divers involved in the diving program or diving operation, as the case may be.
Supervision of a Category I Diving Operation
27 No person shall supervise a category I diving operation unless the person
(a) has been appointed in writing pursuant to paragraph 9(3)(a);
(b) has been certified to be medically fit
(i) to dive, in accordance with paragraph 53(b), or
(ii) to supervise by a medical doctor who has examined the person not more than 12 months prior to the date on which the diving operation is to be conducted and who has recorded the results of the examination on a medical examination record in the form set out in Schedule V, or another form acceptable to the Minister, and in a diving supervisor’s medical certificate in that person’s supervisor’s logbook, referred to in section 51;
(c) holds a valid diving supervisor’s certificate issued pursuant to section 28, 30, 32 or 71, or a valid document that is
(d) has satisfied the diving contractor who conducts the diving operation that
(i) the person has sufficient diving and supervisory experience and adequate knowledge in the use of the diving plant and equipment to be used in the diving operation, or a similar type of diving plant and equipment, and the breathing mixture to be used in the diving operation, and is familiar with the relevant provisions of the procedures manual referred to in paragraph 4(4)(a) and the contingency plan referred to in paragraph 4(4)(i) to be used in the diving operation, and
(ii) the person’s involvement in the diving operation is in no way contrary to any restriction, pursuant to section 35, in that person’s supervisor’s certificate or attached to that person’s document referred to in paragraph (c).
Category I Diving Supervisor’s Certificate
(i) been, for at least three years, the holder of a category I diving certificate issued pursuant to section 54 or 71, or a document that is
(ii) been, during the 12 months preceding the application, an assistant diving supervisor for at least 16 category I dives and has supervised at least two real or mock incidents involving decompression sickness,
(iii) submitted to the Minister a letter of recommendation that is in the form set out in Schedule VI and is signed by a diving contractor or operator and by a diving supervisor, and
(iv) passed a test acceptable to the Minister for a category I diving supervisor’s certificate;
(b) held a category I diving supervisor’s certificate that was issued pursuant to this subsection but is no longer valid because it was not renewed pursuant to subsection (2) and who meets the requirements of subparagraphs (a)(ii) and (iii); or
(c) until December 31, 1990, has satisfied the Minister that the person’s training and experience are equivalent to the training and experience required of a person to obtain a certificate pursuant to paragraph (a).
(2) The Minister may, on application by the holder of a category I diving supervisor’s certificate issued pursuant to subsection (1), renew the certificate for a period of one year where the holder of that certificate has supervised at least 12 category I dives and at least two real or mock incidents involving decompression sickness during the 12 months preceding the application.
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