Maritime Occupational Health and Safety Regulations

142 (1) If there is a risk of injury or disease due to exposure to an oxygen deficient atmosphere in a work place, the employer must provide every person who is granted access to the work place with respiratory protective equipment or a breathing apparatus by means of which air will be supplied and that meets the following requirements:

• (a) it is listed in the NIOSH publication entitled Certified Equipment List, as amended from time to time; and

• (b) it protects the respiratory tract against the oxygen deficiency.

(2) If there is a risk of injury or disease due to exposure to an airborne hazardous substance in a work place, the employer shall provide every person who is granted access to the work place with respiratory protective equipment or a breathing apparatus that meets the following requirements:

• (a) if air is supplied by means of the respiratory protective equipment or breathing apparatus, it is listed in the NIOSH publication entitled Certified Equipment List, as amended from time to time;

• (b) if air is not supplied by means of the respiratory protective equipment or breathing apparatus, it is listed

  • (i) in the NIOSH publication entitled Certified Equipment List, as amended from time to time, or

  • (ii) in the CSA Group publication entitled CSA Group Product Listing, as amended from time to time;

• (c) for respiratory protective equipment or a breathing apparatus referred to in subparagraph (b)(ii), it meets the requirements set out in CSA Standard Z94.4.1, Performance of filtering respirators; and

• (d) it protects the respiratory tract against the hazardous substance.

(3) The respiratory protective equipment or breathing apparatus referred to in subsection (1) or (2) must be selected, fitted, cared for, used and maintained in accordance with CSA Standard Z94.4, Selection, use, and care of respirators.

(4) The employer must ensure that the air that is supplied by means of respiratory protective equipment or breathing apparatus referred to in paragraph (1)(a) or (2)(a) and the system that supplies the air, including its cylinders, meet the requirements set out in CSA Standard Z180.1, Compressed breathing air and systems.