working conditions; temperatures; employers; definitions.

SB 1330 requires Arizona employers with indoor or outdoor workers to implement heat and cold safety programs. When temperatures reach 80°F or higher, employers must provide free water (at least one quart per hour per employee), mandate 10-minute cool-down breaks every two hours (more frequently at 100°F+), and develop written prevention plans covering temperature monitoring, shade access, and emergency response. The law also includes cold-weather protections for work environments below 60°F, requiring programs to address cold-related illness prevention and access to warm areas. These requirements apply to all affected employers, including those with vehicle-based workspaces needing air conditioning below 80°F.