The First Responder Network Authority Reauthorization Act of 2026 aims to extend the authority's function until September 30, 2037, enhance public safety representation on the Board, ensure a reliable broadband network, and provide flexibility in fee establishment. It requires annual reports to Congress on cybersecurity, adoption rates, and activities, and mandates the submission of a business continuity and disaster recovery plan every five years. The bill also amends the 2012 Act by requiring prompt notification of outages, provision of network status tools, and submission of the FirstNet contract to Congress within seven days of a written request. New definitions for "FirstNet contractor" and "interoperable; interoperability" are included.