Below is an overview of constitutional amendment processes in the 50 states. I discuss the various possible ways of amending state constitutions.An amendment to a federal rule generally takes about three years. Sometimes, the goal of filling the amendment tree might be to prevent or limit further amendments from being offered to the underlying measure. Two-thirds vote in the senate and majority vote in the house on first passage; majority in both houses on second passage. This essay examines Article V's procedures for amending the Constitution. It begins with an overview of the historical background of Article V. Identify key steps in the process through which the Constitution is amended. Understand why people might want to amend the Constitution. There are two avenues for amending the Constitution: the congressional proposal method and the convention method.