OSHA Fall Protection Requirements: 6 Feet vs. 4 Feet

Falls are a leading cause of death in construction, and fall protection is OSHA's most cited standard. The trigger height depends on which set of rules covers the work.

Trigger heights

Industry	Fall protection required at	Standard
Construction	6 feet or more above a lower level	1926.501(b)(1)
General industry	4 feet or more above a lower level	1910.28(b)(1)
Scaffolds (construction)	More than 10 feet above a lower level	1926.451(g)(1)
Any height	Working over dangerous equipment or machinery	1926.501(b)(8), 1910.28(b)(6)

Accepted protection methods (construction)

• Guardrail systems: top rail 42 inches (±3 in.) above the walking-working surface, midrails or equivalent, and able to withstand 200 pounds applied at the top edge (1926.502(b)).
• Safety net systems: installed as close as practicable under the work surface, and never more than 30 feet below it (1926.502(c)).
• Personal fall arrest systems (PFAS): anchorages able to support 5,000 pounds per employee attached, or designed with a safety factor of at least two under a qualified person's supervision. The system must be rigged so a worker can't free-fall more than 6 feet or contact a lower level (1926.502(d)).

Specific situations allow other methods, such as warning lines and safety monitors on low-slope roofs, or covers over holes. Hole covers must support at least twice the weight of the workers, equipment, and materials that may be on them, and they must be secured and marked "HOLE" or "COVER" (1926.502(i)).

Common violations

• Unprotected edges on roofs, decks, and floors.
• Open floor holes and skylights without covers or guardrails.
• Workers tied off to anchorages that aren't rated, or not tied off at all.
• Guardrails missing midrails, or the top rail at the wrong height.
• No fall protection training records (1926.503, often the #5 most cited standard).

Training

In construction, every worker who might be exposed to fall hazards must be trained by a competent person. The employer must keep a written certification of that training (1926.503).

CiteSafe can review a photo of a roof edge, opening, or tie-off point and flag the likely 1926.501 or 1926.502 issue with the corrective action.