Which Cal/OSHA requirement applies to construction sites with 5 or more employees during high heat conditions?
Correct Answer
D) Shade must be available when temperature exceeds 80°F
Cal/OSHA requires shade to be available when temperature equals or exceeds 80°F, which is more protective than many other jurisdictions that use higher thresholds.
Why This Is the Correct Answer
Cal/OSHA's Heat Illness Prevention Standard (Title 8, Section 3395) requires employers to provide shade when the outdoor temperature equals or exceeds 80°F. This threshold is lower than what many contractors expect, reflecting California's more protective stance compared to other jurisdictions.
Why the Other Options Are Wrong
Option A: Temperature monitoring equipment required
Cal/OSHA does not require temperature monitoring equipment as a specific heat illness prevention measure. The standard focuses on access to shade, water, rest periods, and emergency procedures — not instrumentation.
Option B: Shade must be available when temperature exceeds 85°F
The threshold of 85°F is incorrect. Cal/OSHA's standard specifically sets the shade requirement at 80°F, not 85°F. Choosing 85°F is one of the most common traps on this topic.
Option C: Mandatory rest periods every 2 hours
Mandatory rest periods every 2 hours is not the prescribed interval under Cal/OSHA. The standard requires a minimum 5-minute cool-down rest period when an employee believes they need one to protect themselves from overheating, and preventive cool-down rest periods when temperatures reach 95°F — but not a blanket every-2-hours requirement.
Memory Technique
Think '80 = Shade Goes Up.' When the thermometer hits 80°F in California, shade must be available. It's lower than you'd expect because Cal/OSHA is stricter than federal OSHA.
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