Article 5

The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution, or, on the Application of the Legislatures of two thirds of the several States, shall call a Convention for proposing Amendments, which, in either Case, shall be valid to all Intents and Purposes, as Part of this Constitution, when ratified by the Legislatures of three fourths of the several States, or by Conventions in three fourths thereof, as the one or the other Mode of Ratification may be proposed by the Congress; Provided that no Amendment which may be made prior to the Year one thousand eight hundred and eight shall in any Manner affect the first and fourth Clauses in the ninth Section of the first Article; and that no State, without its Consent, shall be deprived of it's equal Suffrage in the Senate.

Congress must propose amendments to this Constitution whenever two thirds of both Houses consider amendments necessary. Alternatively, Congress must call a convention to propose amendments if the legislatures of two thirds of the states request one. In either case, the proposed amendments become fully valid parts of this Constitution when ratified. Ratification must come from the legislatures of three fourths of the states, or from conventions in three fourths of the states. Congress must propose which of these two methods of ratification to use. However, no amendment made before 1808 may affect the first and fourth clauses of Section 9 of Article I in any way. And no state may be deprived of its equal voting rights in the Senate without its consent.