CSLB C-20 HVAC ContractorControls, Electrical and SafetyHard
A technician must service a package HVAC unit located on a low-slope commercial roof, working within 6 feet of the unguarded roof edge. Per Cal/OSHA fall protection requirements for low-slope roofs, at what minimum height above the lower level must fall protection (such as a guardrail, warning line system, or personal fall arrest) generally be provided?
- A7.5 feet
- B4 feet
- C6 feet
- D10 feet
Show answer & explanationAnswer & explanation
Correct answer: A. 7.5 feet
Cal/OSHA's General Industry Safety Orders (Title 8, CCR §3212) require fall protection systems, such as guardrails or warning line/personal fall arrest systems, for work on low-slope roofs where the fall distance is 7.5 feet or more. This threshold is specific to low-slope roof work and differs from the general 4-foot rule that applies to unprotected sides and edges elsewhere in general industry settings.
Why the other options are wrong
- B. 4 feet is the general threshold for unprotected sides/edges elsewhere, not the low-slope roof-specific standard.
- C. 6 feet is not the Cal/OSHA regulatory threshold for low-slope roof fall protection.
- D. 10 feet exceeds the actual regulatory threshold and would leave workers unprotected below that height.
Cal/OSHA Low-Slope Roof Fall Protection
Cal/OSHA requires fall protection systems (guardrails, warning lines, or fall arrest) for low-slope roof work when the fall distance is 7.5 feet or more per Title 8 CCR §3212.
- Applies specifically to low-slope roofs in general industry
- Differs from the general 4-foot unprotected edge rule
- Options include guardrails, warning line systems, or personal fall arrest
- Rooftop HVAC techs commonly work near this hazard
Memory trick: Seven and a half feet, don't take the roof-edge bet.