Adds to existing law to establish the Financial Accountability Stablecoin Transaction (FAST) Act to provide for the authorization and use of payment stablecoins.

This legislation establishes the Financial Accountability Stablecoin Transaction (FAST) Act in Title 67, Idaho Code, to authorize the optional use of certain federally qualified and public purpose-qualified payment stablecoins for state vendor and contractor payments. The act aligns Idaho law with the federal GENIUS Act, which governs payment stablecoins, including issuer qualifications, reserve requirements, and consumer protections. The bill directs the state treasurer and state controller, acting jointly, to maintain and publish a list of authorized payment stablecoins, establish compliance and risk management procedures, and submit an annual report to the Legislature detailing authorized stablecoins, transaction volumes, and estimated fiscal impacts. Vendors and contractors may elect, but are not required, to receive payment using an authorized payment stablecoin. The purpose of the act is to improve payment efficiency, reduce transaction costs, enhance transparency and auditability, and promote competition and innovation in financial infrastructure, while preserving legislative oversight and compliance with federal and state law.