Versions of Washington Code 70A.120.900 - Effective date -- 1977 ex.s. c 99 on LawServer 2023 Washington Code 70A.120.900 – Effective date — 1977 ex.s. c 99 2022 Washington Code 70A.120.900 – Effective date–1977 ex.s. c 99 2020 Washington Code 70A.120.900 – Effective date — 1977 ex.s. c 99