Versions of See prior versions of a law on LawServer 2023 Washington Code 70A.300.290 – Waste management — Consultative services — Technical assistance — Confidentiality 2022 Washington Code 70A.300.290 – Waste management–Consultative services–Technical assistance–Confidentiality 2020 Washington Code 70A.300.290 – Waste management — Consultative services — Technical assistance — Confidentiality
