Versions of Washington Code 26.26A.245 - Procedure for challenge of an acknowledgment or denial of parentage by signatory on LawServer 2023 Washington Code 26.26A.245 – Procedure for challenge of an acknowledgment or denial of parentage by signatory 2022 Washington Code 26.26A.245 – Procedure for challenge of an acknowledgment or denial of parentage by signatory 2020 Washington Code 26.26A.245 – Procedure for challenge of an acknowledgment or denial of parentage by signatory 2019 Washington Code 26.26A.245 – Procedure for challenge of an acknowledgment or denial of parentage by signatory 2018 Washington Code 26.26A.245 – Procedure for challenge of an acknowledgment or denial of parentage by signatory