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Maritime Occupational Health and Safety Regulations

Version of section 1 from 2023-12-20 to 2024-05-01:

 The following definitions apply in these Regulations.


Act means Part II of the Canada Labour Code. (Loi)


ANSI means the American National Standards Institute. (ANSI)

approved organization

approved organization means an organization that is approved by any province for the teaching of first aid, or a recognized institution within the meaning of subsection 1(1) of the Marine Personnel Regulations. (organisme agréé)

confined space

confined space means an enclosed or partially enclosed space that

  • (a) is not designed or intended for human occupancy, except for the purpose of performing work;

  • (b) has restricted means of access and egress; and

  • (c) may become hazardous to any person entering it owing to

    • (i) its design, construction, location or atmosphere,

    • (ii) the materials or substances in it, or

    • (iii) any other conditions relating to it. (espace clos)

crew accommodation

crew accommodation means living, eating, recreational or sleeping quarters provided by an employer for the accommodation of employees on a vessel. (logement de l’équipage)


CSA means the Canadian Standards Association. (CSA)

day vessel

day vessel means a vessel that is not equipped with accommodation to provide rest for employees. (bâtiment de jour)

disabling injury

disabling injury means an employment injury or an occupational disease that

  • (a) prevents an employee from reporting for work or from effectively performing all the duties connected with their regular work on any day after the day on which the injury or disease occurred, whether or not that later day was a work day for that employee;

  • (b) results in an employee’s loss of a body member or part of one or in the complete loss of the usefulness of a body member or part of one; or

  • (c) results in the permanent impairment of a body function of an employee. (blessure invalidante)

electrical equipment

electrical equipment means equipment for the generation, distribution or use of electricity. (outillage électrique)

first aid certificate

first aid certificate means the certificate issued by or with the authority of an approved organization for successful completion of a two-day first aid course. (certificat de secourisme)

gross tonnage

gross tonnage means the volume of a vessel as determined by a tonnage measurer or calculated in accordance with the regulations made under paragraph 77(h) of the Canada Shipping Act, 2001. (jauge brute)


ILO means the International Labour Organization. (OIT)


IMO means the International Maritime Organization. (OMI)

inland voyage

inland voyage has the same meaning as in section 1 of the Vessel Safety Certificates Regulations. (voyage en eaux internes)

inland waters of Canada

inland waters of Canada has the same meaning as in section 1 of the Vessel Safety Certificates Regulations. (eaux internes du Canada)

international voyage

international voyage means a voyage between a place in Canada and a place not in Canada or between places not in Canada. (voyage international)


isolation means separation or disconnection from every source of energy that is capable of making equipment dangerous. (isolation)

lock out

lock out means placement of a lock on equipment, machines or energy-isolating devices in accordance with an established procedure, to indicate that the equipment, machines or devices are not to be operated until the lock is removed in accordance with an established procedure. (cadenasser)

marine chemist

marine chemist means a qualified person who

  • (a) is a graduate of a post-secondary education institution who

    • (i) has successfully completed courses in chemical engineering,

    • (ii) has successfully completed a general program with a major in chemistry, or

    • (iii) is a member of the Chemical Institute of Canada; and

  • (b) has at least three years’ experience in chemical or engineering work, after the person has satisfied the requirements of paragraph (a), of which a minimum of 150 working hours were spent under the supervision of a qualified person in work on board a vessel testing tank reservoirs and other containers in the application of gas hazard control standards. (chimiste de la marine)

MLC 2006

MLC 2006 means the Maritime Labour Convention, 2006. (CTM 2006)

near coastal voyage, Class 1

near coastal voyage, Class 1 has the same meaning as in section 1 of the Vessel Safety Certificates Regulations. (voyage à proximité du littoral, classe 1)


NIOSH means the National Institute for Occupational Safety and Health in the United States. (NIOSH)

oxygen deficient atmosphere

oxygen deficient atmosphere means an atmosphere in which there is less than 19.5 per cent by volume of oxygen at a pressure of one atmosphere or in which the partial pressure of oxygen is less than 148 mm Hg. (air à faible teneur en oxygène)

passenger vessel

passenger vessel[Repealed, SOR/2023-257, s. 400]

personal service room

personal service room means a change room, sanitary facility, shower room, or other area of the crew accommodation or a combination of those areas. (local réservé aux soins personnels)

protection equipment

protection equipment means safety materials, equipment, devices and clothing. (équipement de protection)

qualified person

qualified person means, in respect of a specified duty, a person who, because of their knowledge, training and experience, is qualified to perform that duty safely and properly. (personne qualifiée)


rest means a period during which an employee is not assigned any duty and has access to sleeping quarters and sanitary facilities. (repos)

sanitary facility

sanitary facility means a room that contains a water closet or a urinal. (cabinet de toilette)


SOLAS means the 2004 consolidated edition of the International Convention for Safety of Life at Sea, 1974. (SOLAS)

special purpose vessel

special purpose vessel[Repealed, SOR/2023-257, s. 400]

unlimited voyage

unlimited voyage has the same meaning as in section 1 of the Vessel Safety Certificates Regulations. (voyage illimité)

ventilation equipment

ventilation equipment means a fan, blower, induced draft or other ventilation device used to force a supply of fresh, respirable atmospheric air into an enclosed space or to move ambient air from that space. (matérial de ventilation)


vessel has the same meaning as in section 2 of the Canada Shipping Act, 2001. (bâtiment)

  • SOR/2012-271, s. 9
  • SOR/2019-246, s. 216
  • SOR/2021-122, s. 15
  • SOR/2021-135, s. 22
  • SOR/2022-94, s. 12(E)
  • SOR/2023-257, s. 400

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