Government
Within the Fort Peck Reservation, the Fort Peck Tribes possess absolute power to govern all matters involving its members and jurisdictional areas. This traditional capacity and associated rights, unless expressly revoked by Congress, continue to be enjoyed and applied by the Tribes. Fort Peck Tribal governmental establishment, leadership, authority and procedures are illustrated in the Fort Peck Tribal Constitution and By-Laws with Amendments incorporated document, previously adopted on October 1, 1960.