The Disaster Declaration Transparency Act of 2026 creates a new mechanism allowing Congress to overturn a President's refusal to declare a major disaster. This process is triggered when a state Governor requests a declaration, and the President declines it either against the Federal Emergency Management Agency (FEMA) Administrator's recommendation or based on a FEMA recommendation that deviates from established precedent. Following such a "covered refusal," the President must provide a written explanation to Congress within 24 hours. Upon notification, members of Congress can introduce a "covered joint resolution" within 14 days, specifically directing the President to declare the disaster. The bill establishes expedited legislative procedures for this resolution in both the House and Senate. These procedures include automatic committee discharge after two days, waiver of most procedural objections, and strict limits on debate, ensuring a swift vote. Crucially, the joint resolution cannot be amended , and debate on final passage is limited to a few hours. The bill also outlines specific rules for how each chamber handles a joint resolution passed by the other, aiming to streamline the process. If the President vetoes such a joint resolution, the bill provides for an expedited 10-hour debate in the Senate for a potential override. These provisions are enacted as an exercise of congressional rulemaking power, designed to ensure transparency and accountability in federal disaster declaration decisions.