This standard applies to most workplaces where the indoor temperature reaches 82°F. It establishes required safety measures for indoor workplaces.A new law in Phoenix, Arizona, will give protections from extreme heat to thousands of outdoor workers in the hottest city in the country. The state just passed a rule protecting people who work indoors in industries like warehousing, restaurants or manufacturing from excessive heat. Heat Illness prevention standards are required in California when temperatures reach at least 80 degrees. Employment Law Update: March 2024 Phoenix passed an ordinance requiring contractors and subcontractors to develop a Heat Safety Plan. The Phoenix Metro area will experience hot temperatures with high to very high heat risk. Heat related illness will be possible to those sensitive to the heat. The Phoenix City Council passed an ordinance strengthening safety measures for workers who have to perform job duties in the summer heat. Heat is the leading cause of weatherrelated deaths in the U.S., and there is no federal standard to protect employees from excessive heat.