HEAT Act of 2025

The HEAT Act of 2025 updates federal disaster funding rules to include extreme heat as a qualifying event for transportation infrastructure repairs, addressing a gap where heat-related damage was previously excluded. It requires the Transportation Secretary to conduct a study on heat event costs and damage tracking methods, and to issue a best management practices report for highway and bridge safety. The bill directly affects state transportation departments, public transit systems, and freight rail operators by enabling them to seek federal relief for heat-induced infrastructure failures like cracked bridges or jammed drawbridges. Key provisions expand eligibility under Section 125 of Title 23, U.S. Code, and mandate new reporting to help states manage heat-related risks to critical transportation networks.