Hard hat expiration dates are based on ANSI guidelines, which advise referral to manufacturer instructions. Certain critical events, such as an incident involving a collision and a hard hat or lifespan of more than five years, require the ...

The Occupational Safety and Health Administration (OSHA) of the United States regulates how hazards are dealt with in the work place, benefiting the safety of employees and customers. OSHA guidelines apply to workplaces across the board, but are ...