Canada Occupational Health and Safety Regulations

12.12 (1) If there is a risk of injury to the eyes or face in a work place, the employer must provide every person who is granted access to the work place with eye or face protection equipment that is selected by the employer in accordance with Annex A of CSA Group Standard Z94.3, Eye and face protectors, and that meets the requirements set out in that standard.

(2) If there is routine exposure to irritating airborne chemical agents, intense heat, liquid splashes, molten metals or similar agents in a work place, contact lenses must not be worn.