Safety Signs and Labels. Click on the appropriate category to display all relevant safety signs. The Occupational Safety and Health Administration (OSHA) and American National Standards Institute (ANSI) provide specifications, designs, applications, and use of header-style Accident Prevention Safety Signs. These safety signs are intended to indicate the potential, type, and degree of the hazard that may lead to accidental injury and property damage. Accident Prevention Signs are intended to convey a clear and rapidly understood message of the specific hazards. In addition to the specific OSHA and ANSI standards on signage, various standards throughout may contain a single line mention that a particular accident prevention safety sign, with specific wording or thereof, is required for that application. Where applicable, our safety sign section makes mention of such standards.