Canada Occupational Health and Safety Regulations

9.5 (1) Every plumbing system that supplies potable water and removes water-borne waste

• (a) shall meet the standards set out in the Canadian Plumbing Code; and

• (b) subject to subsection (2), shall be connected to a municipal sanitation sewer or water main.

(2) Where it is not practicable to comply with paragraph (1)(b), the employer shall provide a waste disposal system that meets the standards set out in ANSI standard ANSI Z4.3-1979, Minimum Requirements for Nonsewered Waste-Disposal Systems, dated November 8, 1978.