Versions of Washington Code 29A.12.190 - Decertification on LawServer 2023 Washington Code 29A.12.190 – Decertification 2022 Washington Code 29A.12.190 – Decertification 2020 Washington Code 29A.12.190 – Decertification 2019 Washington Code 29A.12.190 – Decertification 2018 Washington Code 29A.12.190 – Decertification