Sacramento, CA (WorkersCompensation.com) — A new study from the Workers’ Compensation Research Institute (WCRI) finds that heat standards in California led to fewer work-related injuries on hot days.

The study, Impact of California’s Heat Standard on Workers’ Compensation Outcomes, looked at how California’s heat standard impacted the frequency of injuries in occupations with exposure to heat like construction, agriculture and transportation.

California is one of seven states, including Colorado, Maryland, Minnesota, Nevada, Oregon, and Washington, with heat standards for workers in heat-exposed jobs. California has standards for indoor and outdoor heat exposure and has triggers for extra protections at 80°F outdoors and 82°F indoors. The standards were implemented in 2005 after several agricultural workers died due to the heat. The emergency outdoor heat regulations were expanded to indoor workplaces in 2024.

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For information on how to download the new WCRI study on the California heat standard, please visit its page on our website!