This standard applies to most workplaces where the indoor temperature reaches 82°F. It establishes required safety measures for indoor workplaces.California's Heat Illness Prevention Standard requires employers to provide training, water, shade, and planning. The city of Tucson and Pima County have both passed resolutions, with an eye toward enacting new ordinances. Pima County Government services and news including Tucson, Marana, Ajo, Oro Valley, Sahuarita, Three Points and Arivaca.