MD SB804

Requires employers with workers exposed to temperatures of 80°F or higher (indoor or outdoor) to develop, implement, and maintain a heat-related illness prevention plan covering water access, shade, rest breaks, and emergency response procedures

Mandates acclimatization protocols for employees newly exposed to heat or returning after 7+ consecutive days of absence, with employers required to either create their own written plan or follow NIOSH guidelines

Requires employers to provide at least 32 ounces of drinking water per hour at no cost and shaded rest areas that are open on at least three sides, sufficiently sized for employees, and located close to work areas

Triggers high-heat procedures at 90°F, including mandatory work/rest schedules, written procedures in languages employees understand, and regular monitoring of workers via phone, radio, or buddy system

Requires initial heat stress training before first exposure and annual retraining, with records maintained for one year and made available to the Commissioner on request; effective October 1, 2026