Wash. Rev. Code § 26.26A.900 : DOMESTIC RELATIONS — UNIFORM PARENTAGE ACT — MISCELLANEOUS PROVISIONS — Uniformity of application and construction-2018 c 6 TEXT PDF In applying and construing this uniform act, consideration must be given to the need to promote uniformity of the law with respect to its subject matter among states that enact it. RCW 26.26A.900 Added by 2018 c 6,§ 901, eff. 1/1/2019.