Section 26.26A.220 - Effect of acknowledgment or denial of parentage(1) Except as otherwise provided in RCW 26.26A.235 and 26.26A.240, an acknowledgment of parentage that complies with RCW 26.26A.200 through 26.26A.265 and is filed with the state registrar of vital statistics is equivalent to an adjudication of parentage of the child and confers on the acknowledged parent all rights and duties of a parent.(2) Except as otherwise provided in RCW 26.26A.235 and 26.26A.240, a denial of parentage by a presumed parent or alleged genetic parent which complies with RCW 26.26A.200 through 26.26A.265 and is filed with the state registrar of vital statistics with an acknowledgment of parentage that complies with RCW 26.26A.200 through 26.26A.265 is equivalent to an adjudication of the nonparentage of the presumed parent or alleged genetic parent and discharges the presumed parent or alleged genetic parent from all rights and duties of a parent.