Versions of Washington Code 71.24.587 - Opioid use disorder treatment -- Possession or use of lawfully prescribed medication -- Declaration by state on LawServer 2023 Washington Code 71.24.587 – Opioid use disorder treatment — Possession or use of lawfully prescribed medication — Declaration by state 2022 Washington Code 71.24.587 – Opioid use disorder treatment–Possession or use of lawfully prescribed medication–Declaration by state 2020 Washington Code 71.24.587 – Opioid use disorder treatment — Possession or use of lawfully prescribed medication — Declaration by state 2019 Washington Code 71.24.587 2018 Washington Code 71.24.587 – Opioid use disorder treatment — Possession or use of lawfully prescribed medication — Declaration by state