The Constitution of the State of Montana is the primary legal document providing for the self-governance of the U.S. State of Montana. It establishes and defines the powers of the three branches of the government of Montana, and the rights of its citizens. Its provisions are sovereign within the state, subject only to the limits imposed by the national laws and constitution of the United States. The current Montana Constitution was adopted in 1972 and is the second enacted in the state's history.