Versions of Washington Code 70A.305.902 - Construction -- 1989 c 2 on LawServer 2023 Washington Code 70A.305.902 – Construction — 1989 c 2 2022 Washington Code 70A.305.902 – Construction–1989 c 2 2020 Washington Code 70A.305.902 – Construction — 1989 c 2