This legislation proposes to amend the Robert T. Stafford Disaster Relief and Emergency Assistance Act, a foundational law governing federal disaster response. The primary objective is to expand the scope of events that can be officially declared a major disaster by the federal government. Specifically, the bill modifies Section 102(2) of the Act by inserting "extreme heat" into the definition. This crucial change would enable the President to declare extreme heat events as major disasters, thereby unlocking federal relief and emergency assistance for affected states and communities.