NCCCO Crane Operator Access, Egress, and Fall Protection — Questions and Answers
Question 1: OSHA 1926.1423 requires that employees maintain how many points of contact when climbing on a crane?
- Two points at all times
- Three points at all times (Correct answer)
- Four points at all times
- Two hands at all times, regardless of foot position
Correct answer: Three points at all times
OSHA 1926.1423(b) requires employees to maintain three-point contact (two hands and one foot, or two feet and one hand) whenever climbing on a crane. If one limb slips, two secure points of contact remain to prevent a fall.
Question 2: Under OSHA 1926.1423, which of the following is explicitly prohibited while climbing a crane ladder?
- Climbing with tools stored in a belt-mounted holster
- Climbing during light rain if anti-slip tread surfaces are present
- Carrying objects in the hands while climbing (Correct answer)
- Climbing a ladder equipped with a fall arrest rail system
Correct answer: Carrying objects in the hands while climbing
OSHA 1926.1423(b) prohibits carrying objects in the hands while climbing because it prevents the employee from maintaining three-point contact. Tools and equipment must be carried in tool belts, pouches, or hoisted separately.
Question 3: At what height above a lower level does OSHA 1926 Subpart M require fall protection for construction employees working on crane structures?
- 4 feet
- 6 feet (Correct answer)
- 10 feet
- 15 feet
Correct answer: 6 feet
OSHA 1926 Subpart M requires fall protection at 6 feet or more above a lower level for construction activities, including work on crane platforms, walkways, and structural components. This threshold differs from the general industry standard of 4 feet under 1910.
Question 4: What is the key operational difference between a fall restraint system and a fall arrest system?
- A fall restraint system uses a harness; a fall arrest system uses only a body belt
- A fall restraint system prevents the worker from reaching the fall edge; a fall arrest system stops a worker in free fall after a fall begins (Correct answer)
- A fall restraint system is required on cranes; a fall arrest system is optional equipment
- A fall arrest system must be inspected daily; a fall restraint system requires only monthly inspection
Correct answer: A fall restraint system prevents the worker from reaching the fall edge; a fall arrest system stops a worker in free fall after a fall begins
A fall restraint system uses a lanyard sized so the worker physically cannot reach the fall hazard — the fall never starts. A fall arrest system allows a fall to begin and then arrests (stops) it before the worker strikes a lower level. Both require full-body harnesses in construction environments.
Question 5: According to OSHA 1926.1423, when an employee must climb a crane ladder that has no cage, well, or integral ladder safety system, what is required?
- A second employee must stand at the base to spot and assist the climber
- A personal fall arrest system must be used (Correct answer)
- The climb must be recorded in the crane's daily inspection log
- Climbing is not permitted — all crane ladders must have cages or fall protection before access is allowed
Correct answer: A personal fall arrest system must be used
OSHA 1926.1423(c) requires use of a personal fall arrest system when the crane ladder is not equipped with a cage, well, or other integral fall protection. The system must include a full-body harness, energy-absorbing lanyard, and compatible anchorage point.
Question 6: When an employee must perform maintenance work on a crane boom at height without a permanent walkway or safety cable, what fall protection method is required?
- A safety net deployed below the boom at not more than 30 feet
- A personal fall arrest system anchored to an approved structural point on the boom (Correct answer)
- Guardrails on both sides of the lower boom chord
- No fall protection is needed because boom maintenance must be performed with the boom lowered to ground level
Correct answer: A personal fall arrest system anchored to an approved structural point on the boom
When working on a crane boom at heights above 6 feet without permanent guardrails or walkway protection, employees must use a personal fall arrest system (full-body harness, shock-absorbing lanyard, and engineered anchorage point) attached to an approved structural location on the boom.
NCCCO Crane Operator Access, Egress, and Fall Protection
OSHA 1926.1423 requires that employees maintain how many points of contact when climbing on a crane?