Wash. Rev. Code § 18.91.110
(1) The compact shall come into effect on the date on which the compact statute is enacted into law in the seventh member state ("effective date").
(a) On or after the effective date of the compact, the commission shall convene and review the enactment of each of the first seven member states ("charter member states") to determine if the statute enacted by each such charter member state is materially different than the model compact.
(2) Any member state may withdraw from this compact by enacting a statute repealing the same.
[ 2025 c 49 s 11.]