On August 30, 2024, the Occupational Safety and Health Administration (OSHA) issued a proposed rule designed to increase protections for workers exposed to extreme heat in indoor and outdoor settings. As proposed, the rule would require an acclimatization period for workers starting jobs that expose them to high heat, regular paid rest breaks, access to shade for outdoor workers and air conditioning for indoor workers, training on recognizing and responding to heart-related illness, or some combination of those measures, depending on the nature of the work and the heat hazard.