This bill directs the Occupational Safety and Health Administration to promulgate a standard that requires employers to implement certain measures for protecting workers from heat stress and related illnesses or injuries. Heat stress refers to the load of heat that a person experiences due to sources of heat or heat retention (including metabolic heat, environmental factors, and clothing or personal protective equipment) or the presence of heat in a work setting.

Further, if an employer cannot reduce exposure to heat stress below hazardous levels through engineering controls (e.g., heat shields and insulation) or personal protective equipment (e.g., heat reflective clothing), the employer must implement a program that mitigates such exposure through access to appropriate hydration and cool-down spaces, acclimatization policies, and periodic paid rest breaks.

Additionally, the bill establishes requirements concerning judicial review, implementation, enforcement, recordkeeping, and whistle-blower protections related to the standard.

The bill also requires the Department of Labor to include questions about heat-related illness and injury in the National Agricultural Workers Survey (an employment-based, random-sample survey of U.S. crop workers that collects demographic, employment, and health information).

This bill requires the Department of Labor to promulgate an occupational safety or health standard on prevention of exposure to excessive heat. Excessive heat includes outdoor or indoor exposure to heat at levels that exceed the capacities of the body to maintain normal body functions and may cause heat-related injury, illness, or fatality.

In addition, the bill establishes requirements concerning (1) training and education to prevent and respond to heat illness, and (2) whistle-blower protections.