CSLB Law & Business ExamSafetyHard
A contractor places a straight ladder in a 10-foot trench to serve as the means of egress. The top rung of the ladder is level with the surface of the trench opening. Does this installation satisfy Cal/OSHA requirements?
- AYes, trench ladders are exempt from the standard ladder extension requirement
- BNo, ladders may never be used for trench egress; only ramps satisfy the requirement
- CNo, the ladder must extend at least 3 feet above the point of access or landing surface
- DYes, as long as the ladder is properly secured at its base
Show answer & explanationAnswer & explanation
Correct answer: C. No, the ladder must extend at least 3 feet above the point of access or landing surface
Cal/OSHA ladder safety standards require that a portable ladder used to access a landing surface, including a trench opening, extend at least 3 feet above the point of access to provide a secure handhold for workers climbing on or off. A ladder ending flush with the surface fails this requirement.
Why the other options are wrong
- A. There is no trench-specific exemption from the general ladder extension rule.
- B. Ladders are permitted for trench egress as long as they meet extension and other requirements.
- D. Base securing alone does not satisfy the required extension above the landing.
Ladder Extension Requirement
Portable ladders used for access, including in trenches, must extend at least 3 feet above the landing surface to provide a safe handhold for climbers.
- 3-foot extension above landing is required
- Applies to trench egress ladders as well as general ladder use
- Failure to extend creates unsafe mounting/dismounting conditions
Memory trick: Three feet high, safe goodbye — ladders must stick up past the edge.