A worker is installing roofing materials on a residential structure 15 feet above grade. The roof has a 6:12 pitch. Under Cal/OSHA fall protection requirements, what protection is required?
Correct Answer
C) Personal fall arrest system or guardrail system
Cal/OSHA requires fall protection at 6 feet or more, and for steep roofs (over 4:12 pitch), personal fall arrest systems or guardrails are required.
Why This Is the Correct Answer
Cal/OSHA requires fall protection at 6 feet or more on construction sites. For steep-slope roofs (pitch greater than 4:12), a personal fall arrest system (PFAS) or guardrail system is mandatory — a safety monitoring system alone is insufficient. A 6:12 pitch exceeds the 4:12 threshold, so the most robust protection methods apply.
Why the Other Options Are Wrong
Option A: Safety monitoring system with competent person
A safety monitoring system with a competent person is only permitted on low-slope roofs (4:12 pitch or less). The 6:12 pitch in this scenario exceeds that threshold, making a monitoring-only approach non-compliant.
Option B: Warning line system only
A warning line system alone is insufficient for steep-slope roofing. Warning lines are a supplemental measure, not a stand-alone fall protection method for roofs with a pitch over 4:12.
Option D: No protection required for residential work
There is no residential exemption under Cal/OSHA for fall protection. Federal OSHA's residential construction rule (STD 03-00-001) does not apply in California, which enforces its own stricter standards.
Memory Technique
Remember '4:12 is the line': roofs steeper than 4:12 require hard protection (PFAS or guardrail). A 6:12 roof is steep like a ski slope — you need a harness to ski safely.
More California Questions
A construction site has employees working at heights of 12 feet above the ground on a steep-slope roof. According to Cal/OSHA fall protection requirements, what must be provided?
A construction crew is working outdoors in Fresno when the temperature reaches 97°F. Under Cal/OSHA heat illness prevention requirements, what is the minimum frequency for providing preventive cool-down rest periods?
A contractor is renovating a building built in 1975 and discovers material suspected to contain asbestos. According to Cal/OSHA regulations, what is the first required action?
Under Cal/OSHA regulations, what is the minimum frequency for reviewing and updating an Injury and Illness Prevention Program (IIPP)?
Calculate the minimum shade area required for 8 construction workers during a heat illness prevention cool-down period in California:
An employee working with lead-based paint removal has a blood lead level of 45 μg/dl. According to Cal/OSHA lead standards, what action must the employer take?
An IIPP must include procedures for investigating workplace accidents. According to Cal/OSHA, who is responsible for conducting these investigations?
A competent person inspecting a trench notices water seepage and minor soil movement. Under Cal/OSHA excavation standards, what action is required?
Calculate the required air changes per hour for a confined space with lead work under Cal/OSHA regulations. The space volume is 1,200 cubic feet and the exhaust fan moves 400 CFM. How many air changes per hour are being provided?
A roofing contractor is installing fall protection on a commercial building. Under Cal/OSHA Title 8, Section 1710, at what height does fall protection become mandatory for construction work?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass
Related Study Resources
Previous Question
A worker on a residential roof in California falls 12 feet and is hospitalized. Within what timeframe must this incident be reported to Cal/OSHA?
Next Question
Under Cal/OSHA Title 8, Section 1532.1, what is the maximum allowable lead exposure limit (PEL) for construction workers over an 8-hour time-weighted average?