Always verify: State OSHA rules change. This guide reflects requirements as of 2025. Always verify current standards with your state's OSHA agency or at OSHA.gov before making compliance decisions.

Cal/OSHA vs Federal OSHA

California's Division of Occupational Safety and Health (Cal/OSHA) operates under a State Plan approved by federal OSHA. Cal/OSHA standards must be at least as effective as federal OSHA, but California routinely exceeds federal requirements in several areas.

Higher penalty amounts

Cal/OSHA maximum penalties are significantly higher than federal OSHA. Serious violations can reach $25,000 per violation. Willful or repeat violations can reach $158,727 per violation. High-hazard employers face additional scrutiny and enhanced penalties.

Heat illness prevention (T8 CCR 3395)

California's heat illness prevention standard has been in place since 2005 and is stricter than the current federal approach. It requires a written heat illness prevention plan, specific water and shade provisions, and mandatory cool-down periods at 95°F. High-heat procedures are required at 95°F or above.

Indoor heat standard

California also has an indoor heat illness prevention standard (T8 CCR 3396) covering workers in indoor work areas where temperatures reach 82°F or higher — more comprehensive than anything currently in federal OSHA rules.

Injury and Illness Prevention Program (IIPP)

Cal/OSHA requires every employer to have a written Injury and Illness Prevention Program (IIPP) — a broader requirement than most federal OSHA written program mandates. The IIPP must cover hazard identification, communication, and correction procedures.

Reporting requirements

California requires reporting of serious injuries or illnesses within 8 hours. 'Serious' is broadly defined and includes any hospitalization for other than observation, loss of a body part, or disfigurement.

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