1926.502(d)(6): Body belts are prohibited as the sole fall arrest component because they concentrate all arrest force on the abdomen, causing internal injuries and the potential for the worker to slip out. Since January 1998, only full-body harnesses are permitted as the body support component of a personal fall arrest system. Body belts may still be used as a positioning device — to hold a worker in place while working with both hands — but only when combined with a separate fall arrest system.

1926.502(d)(15): The 5,000-pound requirement per attached worker is a minimum — not a guideline. Anchor points that appear structural but have not been load-rated (roof hatches, vent pipes, HVAC supports, conduit) must never be used. If an engineered anchor system is used instead, a qualified person must design it with a 2:1 safety factor based on the maximum arrest forces. Document all anchor point designations before work begins.

1926.502(d)(16)(iii): The total fall distance must be calculated: free fall distance (up to 6 feet) plus deceleration distance (typically 3.5 feet for self-retracting lanyards) plus worker height above feet. If this total exceeds the clearance to the lower level, the system cannot safely arrest the fall. Swing-fall occurs when the anchor is not directly above the worker — a worker 10 feet to the side of their anchor can swing far enough to strike a structure or the ground.

1926.502(d)(21): PFAS components must be inspected before each use. A harness that has arrested a fall must be immediately removed from service — the arrest forces may have damaged internal fibres that look intact externally. Hardware with distorted or broken components, webbing with cuts, fraying, or chemical damage, and lanyards with shock packs that have deployed must all be destroyed and replaced. Never return used arrest equipment to service without manufacturer inspection.

1926.502(b)(1): Top rails must be 39 to 45 inches above the walking/working surface. 1926.502(b)(2): Midrails must be installed midway between the top rail and the walking surface — approximately 21 inches. Toeboards of at least 3.5 inches tall are required when there is a lower level where workers could be struck by falling objects. Wire rope used as a top rail must be flagged at intervals not exceeding 6 feet.

1926.502(b)(3): The 200-pound test represents a worker falling against the rail. A lightweight temporary barrier, a single pipe with wide post spacing, or a cable with insufficient tension will not meet this requirement. Guardrails are often installed by workers who focus on appearance rather than load capacity. A competent person must verify that the system as installed will resist the required forces before workers are protected by it.

1926.502(j)(1): Hole covers must be capable of supporting at least twice the weight of workers, equipment, and materials that may be imposed. A single sheet of plywood screwed down may not meet this requirement for a large hole. The cover must be marked with the words HOLE or COVER — not just a cone or a warning tape around it. Skylights must be covered or have a guardrail or personal fall arrest system — a skylight alone is not a walking surface and does not support a worker’s weight.

1926.502(k): A controlled access zone may only be used as an alternative for leading edge work and precast concrete erection where it is infeasible or creates greater hazard to install guardrails. The control line must be at least 6 feet from the unprotected edge for leading edge work, or 6 to 25 feet for residential construction. Only authorised workers may enter the CAZ. A control line made of rope and flags is not a physical barrier — workers must be trained to respect it.

1926.1053(a)(18): Fixed ladders over 24 feet must have a fall protection system. A cage provides passive containment but does not arrest a fall — it prevents a worker from falling away from the ladder. A personal ladder safety system (a climbing device on a rail) is more effective. Portable ladders must be set at a 4:1 angle (1 foot out for every 4 feet of height), secured at the top when possible, and extended at least 3 feet above the roof or landing point.

1926.502(d)(20): The employer must provide for prompt rescue of employees in the event of a fall or must assure that employees are able to rescue themselves. A plan that relies on calling 911 and waiting for the fire department is not prompt rescue — fire department response plus set-up time typically exceeds the suspension trauma window. The rescue plan must identify the rescue method, the rescuers, the equipment, and must be practised before workers use PFAS on site.

1926.32(f): A competent person is someone capable of identifying existing and predictable fall hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous, and who has authorisation to take prompt corrective measures. Competence is not the same as job title. A competent person for fall protection must understand the trigger heights, the specific requirements for each system type, and must have the authority to stop work — not just recommend changes to a supervisor.

1926.20(b)(2): The employer must initiate and maintain programmes which provide for frequent and regular inspections of job sites, materials, and equipment. For fall protection, this means daily inspection by the competent person before work begins. Conditions change overnight — a secured cover can be displaced, a guardrail can be damaged by equipment, and a previously protected opening may have had protection removed for work. A daily pre-work inspection catches these changes before worker exposure.

OSHA expects a pre-task fall hazard analysis before workers begin each phase of work. This identifies every edge, hole, skylight, opening, and elevation change workers will encounter, documents the specific protection for each, and ensures workers know what protections are in place. A generic fall protection plan posted at the trailer is not a pre-task hazard analysis — it must be specific to today’s work in today’s location.

1926.503(a)(1): Training must be provided before workers are exposed to fall hazards, and must cover: the nature of fall hazards in the work area, the correct procedures for erecting, maintaining, disassembling and inspecting the fall protection systems in use, the use and operation of guardrail systems, personal fall arrest systems, safety net systems, controlled access zones, safety monitoring systems, and covers. Training must be done by a qualified person.

An incorrectly worn harness can fail to arrest a fall or cause injury during arrest. Common donning errors include: chest strap across the stomach rather than the chest, leg straps crossed or twisted, dorsal D-ring positioned too low on the back, and straps so loose they allow the worker to slip through. Workers must be trained on their specific harness — not harnesses in general — and the competent person must verify correct fit before workers begin work at height.

1926.503(b): Retraining must occur when the employer has reason to believe that an employee who has already been trained does not have the understanding and skill required by the standard. A worker observed not clipping in at height, donning a harness incorrectly, or removing guardrails temporarily without authorization must be retrained before continuing work. A verbal warning without retraining does not satisfy the standard.

1926.503(c): The employer must verify that the required training has been accomplished by preparing a written certification record. The certification must contain the employee’s name, the date(s) of training, and the signature of the person who conducted the training or the signature of the employer. If an OSHA inspector asks for training records and none can be produced, all workers on the job site are presumed untrained.

A written fall protection plan is required when alternative fall protection measures are used (such as a controlled access zone). It is strongly recommended for all sites with significant fall hazards. The plan must be site-specific — not a template with blanks — and must be updated as conditions change. Workers and supervisors must know where to find the plan and what it requires. A plan that no one has read provides no protection.

Prior fall incidents are the strongest predictor of future falls and indicate systemic programme failures. Every fall incident must be investigated to determine: why the hazard was not eliminated, whether fall protection was in place and why it failed or was not used, what the competent person observed before the incident, and what programme changes are required. OSHA treats prior citations as evidence of knowledge of the hazard — repeat violations carry dramatically higher penalties.