Regulates construction employers to keep their employees safe from exposure to extreme heat

This bill requires construction employers to create written heat illness prevention plans for workers exposed to extreme heat. It directly affects construction workers and all employers in the construction industry, including contractors and temporary staffing agencies. Key provisions mandate employers to provide cool water (under 59°F/15°C), paid rest breaks in shaded/cool areas, regular heat monitoring, and annual training on heat risks and emergency response. Plans must be developed with worker input, translated for non-English speakers, and include heat wave alert procedures. Employers must also track heat exposure and maintain records of safety measures.