1910.28(b)(6) Dangerous Equipment

Each employee less than 4 feet (1.2 m) above dangerous equipment is protected from falling into or onto the dangerous equipment by a guardrail system or a travel restraint system, unless the equipment is covered or guarded to eliminate the hazard.

Each employee 4 feet (1.2 m) or more above dangerous equipment must be protected from falling by:

Guardrail systems;

Safety net systems;

Travel restraint systems; or

Personal fall arrest systems.