Step 1. Passage by Congress. Proposed amendment language must be approved by a two-thirds vote of both houses.
Step 2. Notification of the states. The national archivist sends notification and materials to the governor of each state.
Step 3. Ratification by three-fourths of the states. Ratification of the amendment language adopted by Congress is an up-or-down vote in each legislative chamber. A state legislature cannot change the language. If it does, its ratification is invalid. A governor’s signature on the ratification bill or resolution is not necessary.
Step 4. Tracking state actions. Proposed amendments must be ratified by three-fourths of the states in order to take effect. Congress may set a time limit for state action. The official count is kept by Office of the Federal Register at the National Archives. Legislatures must return specific materials to show proof of ratification.
Step 5. Announcement. When the requisite number of states ratify a proposed amendment, the archivist of the United States proclaims it as a new amendment to the U.S. Constitution. Actual certification is published immediately in the Federal Register and eventually in the United States Statutes-at-Large.
