Hoisting Personnel Under OSHA 1926.1431

Hoisting Personnel Under OSHA 1926.1431

The feasibility gate

OSHA 1926.1431 is not a routine material-handling option. Hoisting employees with equipment covered by the construction crane rule is allowed only when conventional access—such as stairs, ladders, aerial lifts, elevating platforms, or scaffold—would be more hazardous or is impossible because of the project's structural design or worksite conditions. Cost or convenience is not the test.

Once that condition is met, every relevant paragraph applies. A company may add a stricter critical-lift procedure, but a generic “75% critical lift” policy cannot replace the personnel-hoisting rule.

Equipment setup and capacity

The equipment must be uniformly level within 1% and on footing that a qualified person has determined is sufficiently firm and stable. Equipment with outriggers or stabilizers must have all of them extended, locked, and used in accordance with the manufacturer; where the manufacturer permits multiple positions, all must be set to the same extension unless the rule's limited exception applies.

The total load of an occupied suspended platform—including platform, personnel, tools, materials, hook, load line, and rigging—must not exceed 50% of rated capacity at the working radius and configuration, except during proof testing. Controlled load lowering is required, and free fall is prohibited.

Required operational aids and safety devices include applicable boom-angle and boom-hoist limiting devices, anti-two-block protection, and other devices listed for the equipment type. The anti-two-block device must prevent damage or failure; merely warning after contact is not adequate where prevention is required.

Platform design and loading

The personnel platform and suspension system must be designed by a qualified person familiar with structural design. The system must minimize tipping, and the platform must support its own weight plus at least five times the maximum intended load without failure. Platform welding must be performed by the specified certified welder.

The platform must have compliant guardrails, enclosure from toeboard to midrail, headroom, a grab rail, and a gate or access system that does not swing outward. OSHA provides a narrow exception for a one-person platform where inward swing is infeasible. The platform must display its weight and rated capacity or maximum intended load.

The platform must remain within 10 degrees of level. Load it evenly, secure tools and materials, and limit occupants to employees necessary for the work. Do not use the platform to hoist materials except those needed for the work being performed.

Rigging and hooks

The platform suspension must prevent displacement and minimize tipping. Rigging hardware and hooks must support at least five times the maximum intended load applied to the component; rotation-resistant rope slings must support at least ten times the maximum intended load. Wire-rope sling eyes require thimbles. Platform bridles and associated rigging are dedicated to personnel use.

Hooks in the connection must be capable of closing and locking to eliminate the throat opening and must be closed and locked when attached. A shackle used in place of a hook must be an alloy anchor type with either a bolt, nut, and retaining pin in place or a screw pin secured from accidental removal. Other detachable devices must close and lock to the same extent.

Where tag lines are necessary to control the platform, use them. Their use must not introduce power-line or entanglement hazards.

Trial lift versus proof test

These are different operations:

• Trial lift: before employees are hoisted, move the unoccupied platform loaded at least to the anticipated lift weight through the intended route. Perform it immediately before each shift in which personnel will be hoisted. Repeat whenever the equipment is moved and set up in a new or previously used location. Repeat when the lift route changes unless the competent person determines that the new route presents no new factor affecting safety.
• Proof test: at each jobsite before employees are hoisted, test the platform and rigging to 125% of the platform's rated capacity. Repeat after repair or modification. Hold the proof load suspended for five minutes. The proof test may be performed concurrently with the trial lift when both sets of requirements are met.

After the trial lift, a competent person must inspect the points listed in the rule and correct deficiencies. After the proof test, a competent person must inspect the platform and rigging. Do not label the ordinary trial lift “125%”; that confuses two separate safeguards.

Pre-lift meeting and work practices

Before the trial lift at each new work location, conduct a meeting with the equipment operator, signal person if used, employees to be hoisted, and the person responsible for the task. Repeat when a new employee joins. Review the requirements and the procedures that will be followed.

Employees must keep body parts within the platform during raising, lowering, and movement, except as necessary for the work at the landing. The platform should be secured to the structure where feasible before employees leave or enter. Use slow, controlled movement and direct communication with the operator.

Personal fall arrest systems must meet the anchorage and other requirements of OSHA subpart M; over-water work follows the rule's exception. Do not turn the subpart into an unqualified claim that every anchorage must always be a single fixed 5,000-pound point, because the fall-protection standard also recognizes a properly designed alternative system.

Level I exam method

On a personnel-hoisting question, identify the special rule first. Check feasibility, equipment setup, 50% capacity, platform design, positive hook retention, trial lift, proof test, inspection, meeting, and work practice. Avoid answers that apply a material-lift habit to people. If any required element is absent, employees are not hoisted until it is corrected.