Guidelines: This checklist covers the regulations issued by the U.S. Department of Labor - OSHA under the General Industry standards 29 CFR 1910.144 and 1910.145 and the Construction standards 1926.200.
It applies to all safety signs except those designed for streets, highways, railroads and marine regulations.
It does not apply to bulletin boards or safety posters.
The regulations cited only apply to private employers and their employees, unless adopted by a state agency and applied to other groups such as public employees.