Canada Occupational Health and Safety Regulations

4.4 (1) Subject to subsection (3), no elevating device shall be used or placed in service while any safety device attached thereto is inoperative.

(2) Subject to subsection (3), no safety device attached to an elevating device shall be altered, interfered with or rendered inoperative.

(3) Subsections (1) and (2) do not apply to an elevating device or a safety device that is being inspected, tested, repaired or maintained by a qualified person.