jswizzle3737/ontario_laws_and_regs huggingface dataset:
2. (1) This Regulation applies in relation to, (a)  any diving operation; and (b)  any function in support of a diving operation.  O. Reg. 629/94, s. 2 (1). (2) Despite subsection (1), this Regulation does not apply in relation to, (a)  recreational diving, including any diving operation whose purpose is to train people for recreational diving; (b)  any diving operation in which the only underwater breathing equipment used is snorkelling equipment; (c)  a dive the sole purpose of which is to respond to an unforeseen emergency situation involving imminent danger to the life, health or safety of any person, if the dive is undertaken voluntarily; or (d)  any function in support of a diving operation described in clause (a) or (b) or any dive described in clause (c).  O. Reg. 629/94, s. 2 (2); O. Reg. 155/04, s. 1. (3) For the purposes of clause (2) (c), a dive is not undertaken voluntarily if it is related to a diving operation in relation to which the diver is paid.  O. Reg. 629/94, s. 2 (3). Method of Giving Notice to Ministry
3. (1) In this section, “Form” means the form available from the Ministry entitled “Notice of Diving Operation”. O. Reg. 32/14, s. 2. (2) Written notice required by this Regulation shall be given by completing the Form and, (a)  delivering it to the address specified on the Form; (b)  faxing it to the number specified on the Form; or (c)  sending it as otherwise specified on the Form. O. Reg. 32/14, s. 2. (3) Oral notice required by this Regulation shall be given by telephoning the number specified on the Form. O. Reg. 32/14, s. 2. Equivalency
4. (1) An employer, owner, constructor or diving supervisor may vary a procedure required by this Regulation or a composition, design, size or arrangement of a material, object, device or thing required by this Regulation if, (a)  the varied procedure, composition, design, size or arrangement affords protection for the health and safety of workers that is at least equal to the protection that would otherwise be afforded; and (b)  written notice of the variance has been given to the joint health and safety committee or the health and safety representative, if any, and to the Ministry. O. Reg. 32/14, s. 3. (2) Subsection (1) does not apply in respect of any requirement in the Act or this Regulation to give notice.  O. Reg. 629/94, s. 4 (2). Duties of Employers, Constructors and Owners
4.1 (1) In this section, “Standard” means CSA Standard Z275.4-12, “Competency Standard for diving, hyperbaric chamber, and remotely operated vehicle operations”. O. Reg. 32/14, s. 4. (2) An employer shall ensure that every person who participates in a diving operation meets the competency requirement applicable to the type of diving operation being participated in as set out in the Standard. O. Reg. 32/14, s. 4. (3) For the purposes of subsection (2) and despite Clause 1.5 of the Standard, the Standard applies to scientific diving as defined in section 1 of this Regulation. O. Reg. 32/14, s. 4. (4) For the purposes of subsection (2) and despite Clause 5.1 of the Standard, Clause 5 of the Standard applies to aquarium exhibit divers using S.C.U.B.A. to the maximum depth of the aquarium facility. O. Reg. 32/14, s. 4. (5) For the purposes of subsection (2), Clause 5.8.1 of the Standard applies to aquarium exhibit divers for work performed at an aquarium facility. O. Reg. 32/14, s. 4. (6) For the purposes of subsection (2) and despite Clause 5.8.2 of the Standard, an aquarium exhibit diver shall complete 25 dives and 15 hours of bottom time at an aquarium facility to fulfil the in-water training requirement. O. Reg. 32/14, s. 4. (7) For the purposes of subsection (2), Clauses 32 and 33 of the Standard do not apply. O. Reg. 32/14, s. 4.
5. (1) Each constructor of a project where a diving operation is to take place, each employer associated with a diving operation and each owner associated with a diving operation shall ensure that the Ministry is given notice of the diving operation. O. Reg. 629/94, s. 5 (1). (2) Except as provided in subsections (3) and (3.1), notice under subsection (1) shall be given, (a)  in writing at least 24 hours before the diving operation begins; or (b)  orally at least 24 hours before the diving operation begins and in writing within five days after the day on which the diving operation begins. O. Reg. 32/14, s. 5 (1). (3) If a mixed gas is expected to be used in the diving operation other than in a diving operation involving emergency recovery, inspection or repair, notice shall be given in writing at least 24 hours before the diving operation begins. O. Reg. 32/14, s. 5 (1). (3.1) In the event of an emergency recovery, inspection or repair, (a)  oral notice shall be given to the Ministry before any diving equipment is moved to the dive site; and (b)  written notice shall be given to the Ministry within five days after the day on which the diving operation begins. O. Reg. 32/14, s. 5 (1). (4) Written notice under subsection (1) shall include the following: 1.  Information sufficient to permit an inspector to locate the dive site. 2.  The expected starting date and duration of the diving operation. 3.  The dates when and times of day during which the diving operation is expected to be carried out. 4.  The name, mailing address and telephone number of an owner, constructor or employer who is associated with the diving operation. 5.  The names of all diving supervisors for the diving operation appointed under section 6. 6.  The expected maximum depth of any dive in the diving operation. 7.  A description of the tasks expected to be performed in the diving operation. 8.  The breathing mixtures expected to be used in the diving operation. 9.  A statement whether the diving operation is to be offshore or onshore. 10.  A statement whether recirculating S.C.U.B.A. is to be used in the diving operation. 11.  A statement whether the diving operation is one to which Part XI applies. O. Reg. 629/94, s. 5 (4); O. Reg. 32/14, s. 5 (2, 3). (5) Oral notice under subsection (1) shall include the following: 1.  Information sufficient to permit an inspector to locate the dive site. 2.  The expected starting date and duration of the diving operation. 3.  The dates when and times of day during which the diving operation is expected to be carried out. 4.  The name, mailing address and telephone number of an owner, constructor or employer who is associated with the diving operation. 5.  A statement whether the diving operation is to be offshore or onshore. O. Reg. 629/94, s. 5 (5). (6) Each person responsible for ensuring that notice of a diving operation is given under subsection (1) shall also ensure that prior oral notice is given to the Ministry of any departure from the plans described in the notice under subsection (1). O. Reg. 32/14, s. 5 (4). (7) Notice under subsection (6) shall be given as soon as reasonably possible. O. Reg. 32/14, s. 5 (4).
6. Each person responsible for ensuring that notice of a diving operation is given under subsection 5 (1) shall also ensure, (a)  that one or more competent persons are appointed as diving supervisors for the diving operation; and (b)  that one of the persons appointed under clause (a) is present at the dive site and is acting as diving supervisor whenever the diving operation is being carried out.  O. Reg. 629/94, s. 6; O. Reg. 32/14, s. 6.
7. (1) Each person responsible for ensuring that notice of a diving operation is given under subsection 5 (1) shall also ensure that a written operational plan and a written contingency plan for the diving operation are prepared, with input from one or more of the diving supervisors appointed for the diving operation under section 6. O. Reg. 629/94, s. 7 (1). (2) An operational plan shall, (a)  describe the tasks to be performed in the diving operation; (b)  state how the tasks referred to in clause (a) are to be performed; (c)  state how the hazards that could be encountered in the diving operation are to be identified and handled; and (d)  state which agencies, plants and facilities will be given notice under section 9. O. Reg. 629/94, s. 7 (2). (3) A contingency plan shall, (a)  include instructions for communicating with medical assistance in the event of an emergency; (b)  outline emergency procedures for the evacuation of an injured diver from the dive site; (c)  outline emergency procedures for responding to any significant failure of a component of any diving equipment; (d)  outline emergency procedures for responding to a loss of communications with a diver; (e)  outline emergency procedures for responding to hazardous weather or ice conditions; (f)  outline emergency procedures for aborting a dive; and (g)  outline emergency procedures for responding to any inability of an offshore dive site to maintain station.  O. Reg. 629/94, s. 7 (3).
8. Each person responsible for ensuring that notice of a diving operation is given under subsection 5 (1) shall also ensure that each of the following is available for inspection by an inspector at the dive site whenever the diving operation is being carried out: 1.  A copy of any written notice that has been given in respect of the diving operation under subsection 5 (1). 2.  Where written notice has not yet been given in respect of the diving operation under subsection 5 (1), a written statement including the date of the oral notice given in respect of the diving operation and the name of the person to whom the oral notice was given. 3.  A copy of the operational plan prepared for the diving operation under section 7. 4.  A copy of the contingency plan prepared for the diving operation under section 7. 5.  A copy of this Regulation. 6.  A copy of any CSA Standard referred to in this Regulation that may apply to the diving operation. O. Reg. 629/94, s. 8; O. Reg. 32/14, s. 7.
9. (1) Each person responsible for ensuring that notice of a diving operation is given under subsection 5 (1) shall also ensure that notice of the diving operation is given to, (a)  each law enforcement agency that, (i)  has responsibilities in relation to the area in which the dive site is located, and (ii)  would need to know about the diving operation in order to ensure that it is carried out safely and in a manner that takes into account other activities and events in the area; (b)  each industrial plant that is within two kilometres of the dive site and might discharge effluent that would be harmful to the health or safety of a worker associated with the diving operation; and (c)  each water control facility, such as a hydro-electric authority, or water intake plant that is within one kilometre of the dive site. O. Reg. 629/94, s. 9 (1). (2) For the purposes of clause (1) (a), examples of law enforcement agencies include harbour commissions, harbour masters, navigable water authorities and police departments. O. Reg. 629/94, s. 9 (2). (3) For the purposes of subsection (1), notice is given to an agency, plant or facility when it is given to a person with control over or responsibility for the agency, plant or facility. O. Reg. 629/94, s. 9 (3). (4) Notice under subsection (1) shall include the following: 1.  Information sufficient to permit the person receiving the notice to locate the dive site. 2.  The expected starting date and duration of the diving operation. 3.  The dates when and times of day during which the diving operation is expected to be carried out. 4.  The name, mailing address and telephone number of an owner, constructor or employer who is associated with the diving operation. O. Reg. 629/94, s. 9 (4). (5) Notice under subsection (1) shall be given at least 24 hours before the diving operation begins and may be given orally or in writing. O. Reg. 32/14, s. 8. (6) Despite subsection (5), notice may be given less than 24 hours before the diving operation begins in the case of an emergency. O. Reg. 32/14, s. 8.
10.-11. Revoked: O. Reg. 428/21, s. 1. Duties of Diving Supervisors
14. A diver’s tender shall ensure that he or she does not perform any duties other than, (a)  tending a diver’s lifeline; (b)  providing tools and equipment to a diver; (c)  operating a compressor and associated equipment; and (d)  where he or she is also acting as a diving supervisor, performing the duties of diving supervisor. O. Reg. 32/14, s. 13. PART III   EQUIPMENT Diving Equipment — General
15. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that all diving equipment to be used in the diving operation is adequate. O. Reg. 629/94, s. 15 (1). (2) Without limiting the generality of subsection (1), each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that all diving equipment to be used in the diving operation, (a)  is of sound construction and adequate strength and is free from patent defects; (b)  is adequately maintained; (c)  is tested and repaired by a competent person in accordance with the manufacturer’s recommended procedures; and (d)  is constructed in a way that ensures against malfunctions caused by low air or water temperatures or by the expansion of air or gas. O. Reg. 629/94, s. 15 (2). (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that all written material necessary for adequate dive site maintenance and operation of all diving equipment to be used in the diving operation is available at the dive site. O. Reg. 629/94, s. 15 (3). (4) For the purposes of subsection (3), examples of written material include operation manuals, field manuals, maintenance manuals, alerts and safety checklists. O. Reg. 629/94, s. 15 (4). (5) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any compressed gas cylinder to be used in the diving operation is hydrostatically tested and visually inspected in accordance with the CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”.  O. Reg. 629/94, s. 15 (5); O. Reg. 32/14, s. 14. Personal Diving Equipment
16. (1) A diver participating in a diving operation and the diving supervisor for the diving operation shall ensure that the diver is adequately equipped. O. Reg. 629/94, s. 16 (1). (2) A standby diver participating in a diving operation and the diving supervisor for the diving operation shall ensure that the standby diver is adequately equipped. O. Reg. 629/94, s. 16 (2). (3) Without limiting the generality of subsection (1), a diver, other than an atmospheric diving system operator, participating in a diving operation and the diving supervisor for the diving operation shall ensure that the diver is equipped with, (a)  a knife that is adequately strong and sharp; (b)  adequate weights; (c)  an adequate diving suit or, where a diving suit is not necessary because of the circumstances of the dive, other adequate protective clothing; and (d)  a five-point diving harness that meets the requirements of Clause 8.3.5 of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 629/94, s. 16 (3); O. Reg. 32/14, s. 15 (1). (4) Clauses (3) (a) and (d) do not apply to an aquarium exhibit diver. O. Reg. 32/14, s. 15 (2). Dive Site Equipment
17. (1) The diving supervisor for a diving operation shall ensure that, whenever diving is in progress, the dive site is adequately equipped. O. Reg. 629/94, s. 17 (1). (2) Without limiting the generality of subsection (1), the diving supervisor for a diving operation shall ensure, whenever diving is in progress, that the dive site is equipped with, (a)  an oxygen system capable of administering an adequate quantity of 100 per cent pure oxygen to an injured diver until the diver is under the care of a paramedic, physician or other person who, (i)  is qualified to determine whether the diver requires continued oxygen, (ii)  has a source of 100 per cent pure oxygen, and (iii)  is capable of continuing to administer oxygen if required; (b)  a first-aid kit that is adequate having regard to the nature and circumstances of the diving operation; (c)  a set of adequate decompression tables; (d)  where appropriate because of temperature conditions, an adequate climate-controlled facility for the use of workers that is located at or adequately near to the dive site; (e)  an adequate two-way communication system connecting the dive site with medical assistance; (f)  adequate means to facilitate the entry and exit of divers to and from the water; (g)  adequate means to facilitate the immediate exit from the water of an unconscious diver; and (h)  any other equipment that may be required to protect the health and safety of workers, having regard to the nature and circumstances of the diving operation. O. Reg. 629/94, s. 17 (2); O. Reg. 32/14, s. 16 (1). (2.1) For the purposes of clause (2) (f), a ladder is not an adequate means to facilitate the entry and exit of divers to and from the water if the dive site is located more than five metres above the water. O. Reg. 32/14, s. 16 (2). (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that the dive site is of sufficient size to accommodate all workers and equipment needed for the diving operation without overcrowding. O. Reg. 629/94, s. 17 (3). (4) Where a diving operation is to be conducted from an offshore dive site, each employer associated with the diving operation and the diving supervisor for the diving operation shall ensure that, whenever there are workers present at the dive site, (a)  there are at least two adequate means of evacuating workers from the dive site; or (b)  a vessel equipped with an adequate primary motor and an adequate back-up motor is available at the dive site as a means of evacuating workers from the dive site. O. Reg. 629/94, s. 17 (4); O. Reg. 32/14, s. 16 (3). (5) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any vessel used in the diving operation is capable of maintaining station or of being anchored or moored without risk to any diver.  O. Reg. 629/94, s. 17 (5). Lifelines
18. (1) The diving supervisor for a diving operation shall ensure that an adequate lifeline or strength member is attached to each diver participating in the diving operation when the diver is in the water. O. Reg. 32/14, s. 17. (2) Subsection (1) does not apply to an atmospheric diving system operator or an aquarium exhibit diver. O. Reg. 32/14, s. 17. (3) Without limiting the generality of subsection (1), the diving supervisor for a diving operation shall ensure that any lifeline or strength member used in the diving operation, (a)  is free of knots or splices, other than knots or splices necessary to attach the lifeline or strength member to the diver and to the dive site or submersible compression chamber; (b)  has a breaking strength of not less than 907 kilograms; (c)  is securely attached to the diver’s harness by a device that has a breaking strength of not less than 907 kilograms; (d)  is no longer than is required to perform the work; (e)  is securely attached to the dive site or submersible compression chamber, if the diver is using surface-supplied diving techniques; (f)  is securely attached to the dive site or to a float visible to the diver’s tender, if the diver is using S.C.U.B.A; (g)  is tended at all times by a diver’s tender continuously holding the umbilical bundle, if the diver is working at a location where, (i)  differential pressure hazards may exist, (ii)  strong currents exist, (iii)  the diver may fall into deeper depth, or (iv)  liveboating is in progress; (h)  is tended by an in-water diver’s tender during penetration dives, if line pull signals are not effective or if the diver cannot be pulled to the surface without danger of entanglement; (i)  is tended at all times by a diver’s tender continuously holding the lifeline or, in the case of a lifeline attached to a float, continuously observing the float, if the diver is using S.C.U.B.A.; (j)  is tended at all times by a standby diver continuously holding the umbilical bundle, if the diver is operating from a submersible compression chamber; and (k)  is incorporated in the umbilical bundle, if the diver is using an umbilical bundle. O. Reg. 32/14, s. 17. (4) Despite subsection (1), a diving supervisor may permit a diver to operate untethered if, (a)  the diver is a police diver searching for and disposing of explosives; (b)  the diver is working in accordance with the requirements of Clause 4.5 of CSA Standard Z275.6-11, “Unexploded Explosive Ordnance (UXO) and Munitions Diving”; or (c)  the diver is a police diver using a dive sled that is outfitted with an adequate diver locating device. O. Reg. 32/14, s. 17. Communications
19. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that each submerged diver, other than an aquarium exhibit diver, is connected to the dive site by a two-way communication system that is adequate and that meets the requirements of subsections (2) to (5). O. Reg. 32/14, s. 18 (1). (2) Subject to subsection (3), the two-way communication system may be by voice or by pre-arranged line signals. O. Reg. 629/94, s. 19 (2). (3) The two-way communication system must be by voice where, (a)  the depth of the dive exceeds 100 feet; (b)  a diver uses any power tool, explosive, burning equipment or welding equipment; (c)  a diver directs the use of any hoisting device to place any materials underwater while the diver is underwater; (d)  a diver works in or near a pipe, tunnel, duct, underwater intake or other confined space or in or near a water control structure; (e)  a diver places any materials underwater in a way that poses a risk to the health or safety of the diver; (f)  an atmospheric diving system is used; (g)  an open (wet) bell is used; (h)  a submersible compression chamber is used; (i)  the diving operation is one to which Part XI applies; or (j)  during sledding, nothing underwater interferes with through-water voice communication. O. Reg. 629/94, s. 19 (3); O. Reg. 32/14, s. 18 (2, 3). (4) For the purposes of clause (3) (d), a diver works near a thing where the proximity of the thing to the diver poses a health or safety risk to the diver. O. Reg. 629/94, s. 19 (4). (5) The two-way voice communication system must, (a)  afford sound reproduction that enables the diver’s breathing to be heard clearly; and (b)  where a breathing mixture containing helium or any other gas that significantly distorts voice transmission is used, unscramble voices effectively. O. Reg. 629/94, s. 19 (5). (6) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  all communication through a two-way voice communication system used for a dive to a depth greater than 165 feet or for a dive using an atmospheric diving system is continuously recorded; and (b)  the recordings referred to in clause (a) are saved for at least 48 hours after they are made. O. Reg. 629/94, s. 19 (6). (7) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that each submerged diver operating at a depth greater than 100 feet is connected to the dive site by an adequate back-up two-way communications system that is independent of the primary communications system required by subsection (1). O. Reg. 629/94, s. 19 (7). (8) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any atmospheric diving system or submersible compression chamber used in a diving operation is provided with an adequate back-up two-way communications system that is independent of the primary communications system required by subsection (1).  O. Reg. 629/94, s. 19 (8). Cranes and Hoisting Devices
21. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that an adequate system to arrest the fall of a stage or man basket is used whenever a diver is being lowered into the water and there is a hazard that the stage or man basket might fall, (a)  a distance of more than 10 feet; (b)  into or onto operating machinery; or (c)  into or onto a hazardous substance or object. O. Reg. 629/94, s. 21 (1); O. Reg. 32/14, s. 20 (1). (2) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that the fall arrest system, (a)  is adequately secured to a fixed support at the dive site or to a line that is securely fastened to a fixed support at the dive site; (b)  is designed so that if the stage or man basket falls, the stage or man basket will be suspended not more than five feet below the location it occupied before the fall; and (c)  is attached to a secondary lifting eye or similar device that is of at least the same strength as the primary lifting eye for the stage or man basket. O. Reg. 629/94, s. 21 (2); O. Reg. 32/14, s. 20 (2). (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that the fixed support referred to in clause (2) (a) is capable of resisting any arrest forces in the event of a fall and is free of sharp edges that might cut or chafe the connection between the fall arrest system and the fixed support.  O. Reg. 629/94, s. 21 (3). Stages and Open (Wet) Bells
22. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any stage or open (wet) bell used in the diving operation is designed in accordance with good engineering practice and, in the case of a stage, meets the requirements of Clause 6.12 of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”, and in the case of an open (wet) bell, meets the requirements of Clause 6.13 of the same Standard. O. Reg. 32/14, s. 21. Hyperbaric Chambers
23. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that a hyperbaric chamber is at the dive site during any dive that exceeds, (a)  the no-decompression limit given by the decompression tables used for the dive; or (b)  a depth of 100 feet.  O. Reg. 629/94, s. 23 (1). (2) Subsection (1) does not apply in relation to a dive where the diver is always at one atmosphere.  O. Reg. 629/94, s. 23 (2). (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that a hyperbaric chamber is at the dive site during any dive where that would be reasonable in the circumstances for the protection of the diver.  O. Reg. 629/94, s. 23 (3). (3.1) Despite subsections (1) and (3), where the dive site is located on an ice surface, the hyperbaric chamber may be located on land as close as possible to the dive site. O. Reg. 32/14, s. 22 (1). (4) Each employer associated with a diving operation shall ensure that any hyperbaric chamber used on land in the diving operation has been registered with the Technical Standards and Safety Authority, for use in Ontario.  O. Reg. 629/94, s. 23 (4); O. Reg. 155/04, s. 4. (5) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any hyperbaric chamber used in the diving operation, other than as a submersible compression chamber or saturation chamber, meets and is operated in accordance with the requirements specified in Clauses 1 to 9 of CSA Standard Z275.1-05, “Hyperbaric Facilities”. O. Reg. 32/14, s. 22 (2). (6) Each employer associated with a diving operation and the diving supervisor for a diving operation shall, in the case of a dive for which a hyperbaric chamber is used other than as a submersible compression chamber or saturation chamber, ensure that a quantity of air or adequate mixed gas is available with the hyperbaric chamber that is twice the quantity required, (a)  to pressurize the hyperbaric chamber to a pressure equivalent to the pressure at the greatest depth in respect of which the hyperbaric chamber is used in the dive or to the pressure at 165 feet, whichever is greater; and (b)  to ventilate the hyperbaric chamber at this pressure.  O. Reg. 629/94, s. 23 (6). Gauges and Metering Equipment
24. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any gauge or metering equipment to be used in the diving operation meets the requirements of Clause 6.2 of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 32/14, s. 23. PART IV   BREATHING MIXTURES General Requirements
25. (1) The diving supervisor for a diving operation shall ensure that no diver participating in the diving operation is permitted to dive without a breathing mixture and breathing mixture supply system that are adequate, having regard to the depths and circumstances in which the diver will be operating. O. Reg. 629/94, s. 25 (1). (2) The diving supervisor for a diving operation shall ensure that any breathing mixture used in the diving operation meets the requirements of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 32/14, s. 24. (3) Except for decompression or therapeutic purposes, the diving supervisor for a diving operation shall ensure that no diver participating in the diving operation is given pure oxygen as a breathing mixture unless notice is given under paragraph 10 of subsection 5 (4). O. Reg. 629/94, s. 25 (3). (4) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any breathing mixture supply system used in the diving operation is designed to ensure that, (a)  an interruption of the breathing mixture supply to one diver will not affect the supply of breathing mixture to any other diver; and (b)  an interruption of the primary breathing mixture supply to a diver will not affect the delivery of breathing mixture from, (i)  any emergency bail-out system worn by the diver, (ii)  any emergency reserve system worn by the diver, or (iii)  any secondary breathing mixture supply; (c)  an interruption of the primary breathing mixture supply to a submersible compression chamber will not affect the delivery of breathing mixture from any emergency reserve system attached to the chamber; and (d)  an interruption of the primary breathing mixture supply in an atmospheric diving system will not affect delivery of breathing mixture from any secondary breathing mixture supply in the atmospheric diving system.  O. Reg. 629/94, s. 25 (4). Quantities of Primary and Secondary Breathing Mixture Supplies
26. (1) The diving supervisor for a diving operation shall ensure that the total supply of breathing mixture that is available at the dive site at any time during a dive consists of, (a)  an adequate primary supply to complete the dive as planned; and (b)  an adequate secondary supply. (2) The secondary supply referred to in clause (1) (b) shall at the start of a dive consist of, (a)  in the case of a dive in which S.C.U.B.A. is used, one complete S.C.U.B.A. unit, including regulator and fully charged cylinder, in addition to the sets required for the divers and standby divers; (b)  in the case of a dive in which surface-supplied diving techniques are used, an adequate supply of breathing mixture to allow the diver to return to the surface and undergo any in-water decompression that might be required; (c)  in the case of a dive in which a submersible compression chamber or atmospheric diving system is used, an adequate supply of breathing mixture to enable the occupants of the chamber or system to return to the surface; (d)  in the case of a dive in which an on-line gas blender or diver’s gas recovery system is used, an adequate supply of pre-mixed breathing mixture to allow the divers to return to the surface and undergo any in-water decompression that might be required; and (e)  in the case of a dive in which a hyperbaric chamber is used, an adequate supply of breathing mixture to allow the diver to undergo any decompression that might be required and undergo any treatment that might be required for decompression sickness.  O. Reg. 629/94, s. 26. Emergency Reserve and Bail-Out Systems
27. The diving supervisor for a diving operation shall ensure that, (a)  each diver wears an adequate bailout system that meets the requirements of Clause 4.7.3 of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”; (b)  every submersible compression chamber is equipped with an emergency reserve breathing gas supply that is adequate for all of the chamber’s occupants for at least 24 hours; (c)  every submersible compression chamber is equipped with an emergency reserve breathing gas supply that can provide all lock-out divers with at least 30 minutes of breathing gas at a rate of 40 litres per minute; and (d)  every atmospheric diving system is equipped with an emergency reserve breathing gas supply that is adequate for all of the system’s occupants for at least 48 hours. O. Reg. 32/14, s. 25. Breathing Mixtures Containing Nitrogen
28. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, when nitrogen is a component of any breathing mixture used in the diving operation, the mixture is not used at depths where the nitrogen partial pressure in the breathing mixture exceeds 4.8 bars.  O. Reg. 629/94, s. 28. Purity of Breathing Mixtures
29. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that the purity of any breathing mixture used in the diving operation meets the requirements of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 32/14, s. 26. Compressor Requirements
30. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  any compressor and associated equipment used in the diving operation to supply a breathing mixture meets the requirements of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”; and (b)  any compressor and associated equipment used in the diving operation is operated by a competent worker, who may be the diver’s tender. O. Reg. 32/14, s. 27. Oxygen Supply Systems
31. Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any oxygen supply system used in the diving operation meets the requirements of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 32/14, s. 28. PART V   MEDICAL PROCEDURES Medical Examinations
32. (1) No person shall dive, other than as an atmospheric diving system operator, unless he or she, (a)  if under 40 years of age, has undergone a medical examination to determine fitness to dive during the 24-month period preceding the dive or during such shorter period preceding the dive as has been recommended by the person’s examining physician; (b)  if 40 years of age or older, has undergone a medical examination to determine fitness to dive during the 12-month period preceding the dive or during such shorter period preceding the dive as has been recommended by the person’s examining physician; and (c)  has obtained a written statement from the examining physician who performed the most recent medical examination that indicates the diver is fit to dive or fit to dive with limitations. O. Reg. 32/14, s. 29. (2) A medical examination under subsection (1) shall, (a)  be performed by a physician who is knowledgeable about diving medicine and hyperbaric medicine; and (b)  be performed in accordance with the Code for the Medical Examination of Divers, dated October 2013 and issued by the Ministry. O. Reg. 32/14, s. 29. (3) No person shall dive as an atmospheric diving system operator unless he or she, (a)  if under 40 years of age, has undergone a medical examination to determine fitness to operate an atmospheric diving system during the 24-month period preceding the dive or during such shorter period preceding the dive as has been recommended by the person’s examining physician; (b)  if 40 years of age or over, has undergone a medical examination to determine fitness to operate an atmospheric diving system during the 12-month period preceding the dive or during such shorter period preceding the dive as has been recommended by the person’s examining physician; and (c)  has obtained a written statement from the examining physician that indicates that the diver is fit to operate an atmospheric diving system or fit to operate an atmospheric diving system with limitations. O. Reg. 32/14, s. 29. (4) A written statement under clauses (1) (c) or (3) (c) shall be signed by the examining physician and shall include, (a)  the physician’s name and address; (b)  the date of the examination; and (c)  the recommended date for the next examination. O. Reg. 32/14, s. 29. Emergency Training
33. (1) Each employer associated with a diving operation shall ensure that up-to-date certification in cardio-pulmonary resuscitation, oxygen administration and first aid is held by,  (a)  each person appointed as a diving supervisor for the diving operation; (b)  each diver participating in the diving operation; and (c)  whenever the diving operation is being carried out, at least one diver’s tender at the dive site. O. Reg. 32/14, s. 30. (2) For the purposes of subsection (1), (a)  certification for cardio-pulmonary resuscitation and for first aid shall be from St. John Ambulance, the Canadian Red Cross Society or an organization that offers equivalent training; and (b)  certification for oxygen administration for S.C.U.B.A. diving injuries shall be from the Divers Alert Network or an organization that offers equivalent training. O. Reg. 32/14, s. 30. Medical Assistance
34. Each employer associated with a diving operation shall ensure that arrangements are made with one or more physicians who are knowledgeable about diving medicine and hyperbaric medicine so that any medical advice or support that may be required is available whenever, (a)  a dive that involves decompression is carried out; or (b)  a dive to a depth greater than 100 feet is carried out using techniques other than those of atmospheric diving.  O. Reg. 629/94, s. 34; O. Reg. 32/14, s. 31. Decompression Procedures and Tables
35. The diving supervisor for a diving operation shall ensure that dives that involve decompression are carried out in accordance with adequate decompression procedures and tables.  O. Reg. 629/94, s. 35. PART VI   S.C.U.B.A. DIVING Prohibitions on S.C.U.B.A. Use
36. (1) The diving supervisor for a diving operation shall ensure that S.C.U.B.A. is not used by, (a)  a diver working near or in an operating underwater intake; (b)  a diver working near or in a pipe, tunnel, duct or other confined space; (c)  a diver working at a water control structure; (d)  a diver using any power tool, hoisting device, burning equipment or welding equipment; (e)  a diver placing any materials underwater in a way that poses a risk to the health or safety of the diver; (f)  a diver operating at depths in excess of 100 feet; (g)  a diver working in a diving operation to which Part XI applies; (h)  a diver handling an explosive device, unless the diver is a police diver engaged in a diving operation, including a diving operation for training purposes, that involves searching for and disposing of explosives; or (i)  a diver participating in a UXO diving operation, unless the diver meets the requirements of Clause 5 of CSA Standard Z275.6-11, “Unexploded Explosive Ordnance (UXO) and Munitions Diving”. O. Reg. 629/94, s. 36 (1); O. Reg. 32/14, s. 32. (2) For the purposes of clauses (1) (a) and (b), a diver works near a thing where the proximity of the thing to the diver poses a health or safety risk to the diver.  O. Reg. 629/94, s. 36 (2). Minimum Crew
37. (1) Whenever S.C.U.B.A. is used, each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  an adequate number of diver’s tenders, and in any event at least one diver’s tender, is present at the dive site; (b)  an adequate number of standby divers, and in any event at least one standby diver, is present at the dive site; (c)  an adequate number of divers, and in any event at least one diver, is present at the dive site; and (d)  one person does not act at the same time both as diver’s tender and as standby diver for one or more divers. (2) Whenever S.C.U.B.A. is used, the diving supervisor may also function either as a standby diver or as a diver’s tender.  O. Reg. 629/94, s. 37. S.C.U.B.A. Diving Equipment
38. (1) A diving supervisor for a diving operation using open circuit S.C.U.B.A. shall ensure that each diver uses equipment that meets the requirements of Clause 7.8.1. of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”. O. Reg. 32/14, s. 33. (2) Despite subsection (1), Subclause (c) of Clause 7.8.1. of CSA Standard Z275.2-11, “Occupational Safety Code for Diving Operations”, does not apply to an aquarium diver. O. Reg. 32/14, s. 33. PART VII   SURFACE-SUPPLIED DIVING Minimum Crew
39. (1) Whenever surface-supplied diving is being carried out, each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  an adequate number of diver’s tenders, and in any event at least one diver’s tender, is present at the dive site; (b)  an adequate number of standby divers, and in any event at least one standby diver, is present at the dive site; (c)  an adequate number of divers, and in any event at least one diver, is present at the dive site; (d)  except in a health or safety emergency, there is a separate diver’s tender for each diver engaged in surface-supplied diving; and (e)  one person does not act at the same time both as a diver’s tender and as a standby diver for one or more divers engaged in surface-supplied diving. O. Reg. 629/94, s. 39 (1). (2) For the purposes of subsection (1), the diving supervisor may also function either as a standby diver or as a diver’s tender. O. Reg. 629/94, s. 39 (2). (3) Whenever a hyperbaric chamber is required by subsection 23 (1) or (3) and surface-supplied diving is being carried out, each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  the requirements of subsection (1) are met; and (b)  a competent worker who does not have any duties that would interfere with his or her adequate operation of the chamber is available to operate the chamber. O. Reg. 629/94, s. 39 (3). (4) For the purposes of subsection (3), the diving supervisor may also function as one of the following: 1.  A standby diver. 2.  A diver’s tender. 3.  A chamber operator. O. Reg. 629/94, s. 39 (4). (5) Whenever surface-supplied diving is carried out in a diving operation to which Part X or XI applies, each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that, (a)  the requirements of subsection (1) or (3), as the case may be, are met; and (b)  the diving supervisor does not perform the duties of a diver’s tender or a standby diver. O. Reg. 629/94, s. 39 (5); O. Reg. 32/14, s. 34. Breathing Mixture Supply Lines
40. (1) The diving supervisor for a diving operation shall ensure that any breathing mixture supply line used in surface-supplied diving, (a)  is adequate; (b)  has an internal diameter sufficient to permit adequate flow rates and pressures; (c)  is protected in a way that ensures against damage at the dive site; and (d)  is protected against kinking. (2) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that each breathing mixture supply line used in surface-supplied diving is fitted with an adequate breathing mixture supply valve. (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that the breathing mixture supply valve of any diver engaged in surface-supplied diving is, (a)  readily accessible to dive site personnel; (b)  protected in a way that ensures against damage at the dive site; (c)  clearly marked to permit dive site personnel to identify the diver whose breathing mixture supply it controls; and (d)  under the care and control of a competent person. (4) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that each breathing mixture supply line used in surface-supplied diving is fitted with an adequate pressure gauge installed, (a)  downstream of the diver’s supply valve, except where the diver’s supply valve is a position indicating valve; and (b)  in a way that permits dive site personnel a clear and unobstructed view of its dial and figures.  O. Reg. 629/94, s. 40. Helmets, Masks and Hookah
41. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any diver engaged in surface-supplied diving wears a diving helmet or full face mask or uses a hookah that meets the requirements of subsections (2) to (4). (2) A helmet, face mask or hookah must be, (a)  adequate; (b)  fitted with an adequate non-return valve; and (c)  attached by a hose to an adequate emergency bail-out system that is, (i)  worn by the diver, and (ii)  not used for suit-inflation. (3) A helmet or mask shall be fitted with an adequate locking or fastening device. (4) A helmet shall be fitted with an adequate and compatible attachment system for securing and sealing the helmet in place.  O. Reg. 629/94, s. 41. PART VIII   DEEP DIVING General Requirements
42. (1) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that any diver engaged in deep diving, other than atmospheric diving, is provided with an adequate breathing mixture that is mixed gas. O. Reg. 629/94, s. 42 (1). (2) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that deep diving is not carried out unless, (a)  an adequate stage, downline, structure or other means is available to enable the diver to maintain the decompression stop depths and times specified in the decompression tables used for the dive without undue exertion and movement; and (b)  the diving supervisor has a means of, (i)  monitoring the depth of each diver, (ii)  controlling the pressures at which breathing mixtures are being supplied to each diver, and (iii)  analyzing the breathing mixtures being supplied to each diver. O. Reg. 629/94, s. 42 (2). (3) Each employer associated with a diving operation and the diving supervisor for a diving operation shall ensure that a submersible compression chamber that meets the requirements of Part IX is used to transfer personnel under pressure greater than one atmosphere to and from the underwater work site during any dive where, (a)  bottom time exceeds 40 minutes and depth is greater than 165 feet; (b)  bottom time exceeds 25 minutes and depth is greater than 195 feet; or (c)  depth exceeds 230 feet.  O. Reg. 629/94, s. 42 (3); O. Reg. 32/14, s. 35. Exposure Limits and Rest Periods