Canada Occupational Health and Safety Regulations

12.1 (1) Subject to subsection (2), if there is a risk of head injury in a work place, the employer must ensure that protective headwear that meets the requirements set out in CSA Group Standard Z94.1, Industrial protective headwear — Performance, selection, care, and use, or in ANSI Standard Z89.1, American National Standard for Industrial Head Protection, is worn.

(2) If the employer, in consultation with the policy committee or, if there is no policy committee, the work place committee or the health and safety representative, determines that the protective headwear referred to in subsection (1) does not eliminate or reduce the risk of injury, the employer must ensure that appropriate protective headwear selected by the employer, in consultation with the policy committee or, if there is no policy committee, the work place committee or the health and safety representative, is worn.