053-4 Wyo. Code R. § 4-2
(a) Protective eye and face equipment shall be required where there is a potential of injury that can be prevented by the use of such equipment. In such cases, employers shall require the use of a type of protector suitable for the work to be performed. No unprotected person shall knowingly be subjected to a hazardous environmental condition. Suitable eye protectors shall be required by the employer to be used where machines or operations present the hazard of flying objects, glare, liquids or injurious chemicals, or a combination of these hazards.
(b) Design, construction, testing and use of devices for eye and face protection shall be in accordance with the American National Standard for Occupational and Educational Eye and Face Protection, ANSI Z87.I-1989, or accepted as suitable by the Wyoming Occupational Health and Safety Department.
053-4 Wyo. Code R. § 4-2