Wash. Rev. Code § 26.26A.105 : DOMESTIC RELATIONS — UNIFORM PARENTAGE ACT — PARENT-CHILD RELATIONSHIP — No discrimination based on marital status of parent TEXT PDF A parent-child relationship extends equally to every child and parent, regardless of the marital status of the parent. RCW 26.26A.105 Added by 2018 c 6,§ 202, eff. 1/1/2019.