State Constitution is a document that lays down governmental structure, political processes, and limitations on the use of power by a state in the U.S. The state constitution will be in conformity with the federal structure of the states and the national government, under the supremacy of the U.S. Constitution. In the U.S., each state has its own constitution. These constitutions are usually lengthier than the federal constitution. They also contain more detailed rules and regulations as they are deal with day to day matters relating to citizens and the government. Amendments can be made to the state constitution by state governments.