Washington Revised Code Title 26. Domestic Relations § 26.26A.245. Procedure for challenge of an acknowledgment or denial of parentage by signatory

(1) Every signatory to an acknowledgment of parentage and any related denial of parentage must be made a party to a proceeding to challenge the acknowledgment or denial.

(2) By signing an acknowledgment of parentage or denial of parentage, a signatory submits to personal jurisdiction in this state in a proceeding to challenge the acknowledgment or denial, effective on the filing of the acknowledgment or denial with the state registrar of vital statistics.

(3) The court may not suspend the legal responsibilities arising from an acknowledgment of parentage, including the duty to pay child support, during the pendency of a proceeding to challenge the acknowledgment or a related denial of parentage, unless the party challenging the acknowledgment or denial shows good cause.

(4) A party challenging an acknowledgment of parentage or denial of parentage has the burden of proof.

(5) If the court determines that a party has satisfied the burden of proof under subsection (4) of this section, the court shall order the state registrar of vital statistics to amend the birth record of the child to reflect the legal parentage of the child.

(6) A proceeding to challenge an acknowledgment of parentage or denial of parentage must be conducted under RCW 26.26A.400 through 26.26A.515.