Versions of Washington Code > Chapter 70A.425 - Poison prevention--Labeling and packaging on LawServer 2023 Washington Code > Chapter 70A.425 – Poison prevention–Labeling and packaging 2022 Washington Code > Chapter 70A.425 – Poison prevention—Labeling and packaging. 2020 Washington Code > Chapter 70A.425 – Poison prevention—Labeling and packaging.