Versions of Washington Code 70A.10.900 - Effective date -- 1973 c 64 on LawServer 2023 Washington Code 70A.10.900 – Effective date — 1973 c 64 2022 Washington Code 70A.10.900 – Effective date–1973 c 64 2020 Washington Code 70A.10.900 – Effective date — 1973 c 64