Record 104F heat tests California's shade and water rules for outdoor event crews
Shade above 80F and a quart of water per worker per hour already apply on California festival and stadium sites, and when an agency supplies the crew, both the agency and the host can be cited.
Downtown Los Angeles hit 104F on Oct. 5, beating the date's 1953 mark of 101F on its fourth straight day at 100F or above, CBS Los Angeles reported from National Weather Service data. Santa Ana and Woodland Hills each hit 106F that day.
That heat landed on festival grounds, stadium lots and brand activation sites, all covered by California's outdoor heat standard, 8 CCR 3395. Cal/OSHA's Release No. 2026-79, issued Oct. 2, brought no new law. It reminded employers that the outdoor rule and the indoor rule, 8 CCR 3396, are already in force, so every employer running an outdoor event shift owes its crew water, shade and cool-down rest.
The release went out as an extreme heat warning covered the Los Angeles and San Diego regions and inland Orange County from 10 a.m. Oct. 2 to 8 p.m. Oct. 8. Valley forecasts reached 107F, and heat advisories covered parts of the Bay Area and the Central Valley.
What the outdoor heat standard requires
California's heat illness prevention standard for outdoor work, Section 3395, sets five baseline duties for every outdoor employer.
Cal/OSHA's Oct. 2 release says cool-down breaks come in addition to regular breaks. They also carry a pay rule. California Labor Code Section 226.7 defines a “recovery period” as a cooldown to prevent heat illness, and counts a rest or recovery period mandated by a Cal/OSHA standard as hours worked. An employer that fails to provide one owes an extra hour of pay at the regular rate for each workday it is missed.
Indoor areas follow a separate rule from 82F
Back-of-house areas fall under Section 3396, operative since July 23, 2024. Cal/OSHA's heat illness page says an employer with indoor and outdoor workplaces may be covered by both, so a stadium kitchen plus a parking-lot load-in can put one employer under each.
| Outdoor, 8 CCR 3395 | Indoor, 8 CCR 3396 | |
|---|---|---|
| Applies to | All outdoor places of employment | Indoor work areas at or above 82F while employees are present |
| Rest area | Shade up above 80F; on request at or below 80F | A cool-down area kept below 82F where feasible |
| Added rules | High-heat procedures at 95F, for listed industries only | All provisions at 87F (temperature or heat index), or at 82F with heat-restricting clothing or high radiant heat |
| Plan and training | Written plan and training required | Written indoor plan and training required |
Indoor employers must also measure and record temperature or heat index.
The 95F high-heat list does not name events
At 95F, Section 3395 adds high-heat procedures, but only for the industries in subsection (a)(2): agriculture, construction, landscaping, oil and gas extraction, and transport of agricultural products, construction materials or other heavy materials. Events are not on the list. The 80F water, shade and rest rules still apply. A Cal/OSHA draft posted Aug. 14 would drop that list; more below.
What crews and hirers need on site
The baseline is the same for stagehands, setup and teardown crew, concessions staff, event security and valet attendants on an outdoor site.
When you browse outdoor event jobs, ask the hirer how shade and water work on that site before your first shift.
Staffing agency crews: both employers can be cited
Cal/OSHA's fact sheet on temporary agency employees treats a temp worker as having two employers: the agency and the host business where the work happens. Both must protect the employees, both can be cited for a hazard an employee was exposed to, and the host must give site-specific training.
The sheet does not name the heat standard, so settle in writing who supplies water, shade and supervision on each site. More on how a temp staffing agency works and W-2 vs 1099 for event staff.
Federal heat rule: proposed, not final
Federal OSHA proposed a heat injury and illness rule on Aug. 30, 2024. Its rulemaking page shows the post-hearing comment period closed Oct. 30, 2025, with no final rule. OSHA reissued its heat National Emphasis Program on April 10, 2026 (CPL 03-00-024). On California event sites, Sections 3395 and 3396 are the rules in force.
Common questions
The October warning ended Oct. 8; the rules did not. Put the plan in writing before the next outdoor load-in.
