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Washington State Constitution


The State Constitution has been amended 83 times since its inception. Article XXIII, Section 1 addresses the process of amending the Constitution and Section 2 deals with constitutional conventions.

Amendments may be proposed in either branch of the legislature. The Legislature must approve the original proposal or an alternative to the proposed initiative with a 2/3 vote. The approved proposal is then placed on the ballot at the next state general election, and becomes law if approved by a majority of the electors. The state constitution may not be amended by voter initiative.

An Index of Initiative and Referenda (1914-date) is available on the Washington Secretary of State’s website. Voters' pamphlets from elections also contain summaries of proposed constitutional amendments.


Article XXIII of the Constitution deals with the process of amending the Constitution.