The Occupational Safety and Health Administration (OSHA) requires that hard hats be provided to all employees when there is a potential for head injuries due to falling objects. The hard hat must comply with certain requirements defined by either the American National Standard for Industrial Head Protection or the American National Standard for Personnel Protection, or be at least effective as hard hats designed to meet those specifications. Hard hats designed for sports or other purposes do not meet these specific construction hard hat requirements.
In addition to OSHA requirements, local or state governments may also have requirements about when hard hats are necessary and the standards that those construction hard hats must meet to prevent
construction head injuries.