AZ SB1377

Requires the Industrial Commission of Arizona to adopt heat illness prevention standards for indoor and outdoor workplaces, with specific rules for agriculture, construction, landscaping, oil and gas extraction, airport workers, mail/package delivery, and transportation/delivery workers.

Mandates employers provide free drinking water with ice (one cup per 15-20 minutes baseline), shade or climate-controlled rest areas within 400 feet of work areas, and paid cool-down rest periods of 15-45 minutes per hour depending on temperature and activity level when temperatures reach 80°F or higher.

Establishes high-heat procedures at 90°F requiring 10-minute rest breaks every two hours, increasing to every hour at 100°F, along with mandatory employee monitoring through buddy systems, supervisor observation, or regular communication.

Creates cold stress protections when temperatures fall below 60°F, including written mitigation programs, warm-up areas, protective equipment, and paid preventative breaks.

Grants employees a private right of action to sue for violations, with remedies including injunctions and damages of actual losses or $500 per violation (whichever is greater), and prohibits employer retaliation against workers exercising these rights.