Washington Revised Code Title 26. Domestic Relations § 26.26A.455. Adjudicating parentage of child of assisted reproduction

(1) An individual who is a parent under RCW 26.26A.600 through 26.26A.635 or the woman who gave birth to the child may bring a proceeding to adjudicate parentage. If the court determines the individual is a parent under RCW 26.26A.600 through 26.26A.635, the court shall adjudicate the individual to be a parent of the child.

(2) In a proceeding to adjudicate an individual's parentage of a child, if another individual other than the woman who gave birth to the child is a parent under RCW 26.26A.600 through 26.26A.635, the court shall adjudicate the individual's parentage of the child under RCW 26.26A.460.