The bill mandates the Under Secretary of Commerce for Oceans and Atmosphere to conduct an economic impact study quantifying the financial costs of extreme heat . This comprehensive study will evaluate broad health impacts, including mortality and morbidity, and assess property damage or loss. It will also consider medical assistance expenses, various insurance claims, and labor productivity losses. Furthermore, the study will examine economic losses to critical infrastructure, increased energy costs for cooling, and the impact on crop and livestock. The Under Secretary must solicit feedback from numerous Federal agencies and non-Federal partners. Within four years, the findings will be published on HEAT.gov and made publicly available, alongside recommendations for a national system to track and report extreme heat-related costs and impacts.