Coordinated Federal Response to Extreme Heat Act of 2025

This bill establishes a federal interagency committee within NOAA to coordinate heat-health response across 15+ departments (including HHS, EPA, and FEMA) and requires a 5-year strategic plan to improve data sharing, research, and public communication about extreme heat. It creates the National Integrated Heat Health Information System (NIHHIS) to centralize heat-related data and forecasts, making it openly available for public use. The law mandates $5 million annually for 2025-2029 to fund these efforts, directly affecting federal agencies, state/local governments, Tribal nations, and communities facing heat risks. Key provisions include standardizing heat definitions, requiring agency coordination, and building public health preparedness tools to reduce heat-related illness and death.