Establish the specie legal tender act

This bill establishes gold and silver coins issued by the United States as legal tender in Montana, allowing them to be used for payments while prohibiting anyone from forcing others to accept them unless agreed upon in a contract. It defines "specie legal tender" specifically as U.S.-issued gold or silver coin, explicitly excludes central bank digital currencies from this status, and allows other gold or silver bullion to become legal tender only through a court ruling or federal legislation. The act also exempts transactions involving the exchange of different forms of legal tender from both individual income tax and sales tax, while amending existing Montana tax code definitions to support these provisions.