The 6-foot rule
In construction, OSHA's general trigger for fall protection is 6 feet. Under 29 CFR 1926.501, a worker on a walking or working surface with an unprotected side or edge 6 feet or more above a lower level must be protected by a guardrail system, a safety net system or a personal fall arrest system (PFAS).
The same 6-foot trigger applies to holes (including skylights), low-slope and steep roofs, residential construction and most other surfaces. Holes also have to be covered or guarded so people can't trip or step into them and so tools can't fall through.
Scaffolds, ladders, steel erection and cranes have their own rules in other parts of 29 CFR 1926, so the trigger height can be different.
The three main systems
| System | Key OSHA requirements (29 CFR 1926.502) |
|---|---|
| Guardrails | Top rail 42 inches, plus or minus 3 inches, above the working level. Must withstand 200 pounds of force applied near the top edge. Midrails go halfway between the top rail and the working level. |
| Safety nets | As close as practicable under the work, and never more than 30 feet below it. Inspected at least weekly. |
| Personal fall arrest (PFAS) | Full body harness (body belts aren't allowed for fall arrest). Anchorage of at least 5,000 pounds per person or designed with a safety factor of two by a qualified person. Free fall limited to 6 feet with no contact with a lower level. Inspected before each use, with a plan for prompt rescue. |
| Hole covers | Support at least twice the load likely to be placed on them, secured so they can't move, and marked "HOLE" or "COVER". |
Ladders and scaffolds in brief
- Ladders (29 CFR 1926.1053): a portable ladder used to reach an upper landing must extend at least 3 feet above it, or be secured at the top with a grab rail provided. Set extension ladders at about a 4 to 1 angle. Don't stand on the top step of a stepladder. A competent person must inspect ladders periodically and after anything that could damage them.
- Scaffolds (29 CFR 1926.451): workers more than 10 feet above a lower level need fall protection. A competent person must inspect the scaffold before each shift and supervise erecting, moving, altering and dismantling it.
Worked example: fall protection JHA
Job: replacing rooftop HVAC units on a two-story commercial building with a low-slope roof and two skylights. Crew of four.
| Job step | Hazards | Controls |
|---|---|---|
| 1. Access the roof | Fall from extension ladder, ladder slipping or tipping | Ladder extends 3 feet above the roof edge and is tied off at the top. Set at 4 to 1. Inspected before use. Three points of contact, tools hauled up by rope. |
| 2. Set up edge protection | Fall from unprotected roof edge while installing protection | First person up is tied off to a rated anchor. Install guardrails or a warning line before other work starts. |
| 3. Work near skylights | Fall through skylight | Cover each skylight with a secured cover marked "HOLE" or install screens or guardrails before work near them. |
| 4. Crane lift of old and new units | Struck by load, fall at the edge while guiding the load, falling objects to the area below | Tag lines. Workers near the edge use PFAS. Barricade the area below and keep people out of the drop zone. |
| 5. Disconnect and reconnect units | Electrical shock, cuts, manual handling | Lock out and tag out the units. Gloves. Two-person lifts for panels. |
| 6. Clean up and remove protection | Fall while dismantling guardrails, dropped materials | Remove edge protection last, with workers tied off. Lower materials, don't throw them. |
Each control is specific: who does it, with what, and when. That's what makes a JHA usable on site. For the format, see our JHA template and how to write a JHA.
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Training and records
Under 29 CFR 1926.503, every worker who might be exposed to fall hazards must be trained by a competent person to recognize them and use the systems on site. Training covers the fall hazards in the work area, how to set up, inspect and take down the systems in use, and each worker's role.
You need a written certification for each worker showing their name, the training date and the trainer's or employer's signature. Retrain when the site, the equipment or the worker's performance shows the earlier training no longer holds. Running through the fall protection JHA with the crew before work starts is a good way to cover the site-specific part. See what a competent person means under OSHA.
Fines and penalties
Fall protection citations are the most common OSHA citation in construction. In OSHA's preliminary fiscal year 2026 list, 1926.501 is again number one, with scaffolding (1926.451), ladders (1926.1053) and fall protection training (1926.503) also in the top 10.
| What goes wrong | What you can face |
|---|---|
| No guardrail, net or PFAS at 6 feet or more, or no fall protection training records | Up to $16,550 per serious violation (2026). |
| Same hazard cited again, or ignored knowingly | Up to $165,514 per repeat or willful violation (2026). |
| Hazard not fixed by the abatement date | Up to $16,550 per day beyond the deadline (2026). |
| Imminent danger, such as workers at an open edge with no protection | The inspector can ask a federal court to stop the work. General contractors will usually stop your crew immediately. |
| A worker is killed in a fall caused by a willful violation | Criminal prosecution under the OSH Act, with a fine and possible prison time, on top of civil penalties. |
OSHA didn't increase its penalties for 2026, so the 2025 amounts apply. State Plan states set their own amounts. Check OSHA or your state program for current figures.