Asunción Valdivia Heat Illness, Injury, and Fatality Prevention Act of 2025

This bill establishes federal worker heat protection standards to prevent heat-related illness and injury. It requires employers to provide a workplace free from heat stress hazards, including access to cool water, scheduled rest breaks, shaded cooling areas, and training on heat illness symptoms. The Secretary of Labor must create these standards within one year, incorporating evidence-based practices like engineering controls (e.g., ventilation), administrative measures (e.g., adjusted schedules), and employer-paid personal protective equipment. The law directly affects all employers in high-heat work environments - such as construction, agriculture, and manufacturing - and strengthens whistleblower protections for workers reporting safety violations.