Versions of Washington Code 71.24.595 - Statewide treatment and operating standards for opioid treatment programs -- Evaluation and report on LawServer 2023 Washington Code 71.24.595 – Statewide treatment and operating standards for opioid treatment programs — Evaluation and report 2022 Washington Code 71.24.595 – Statewide treatment and operating standards for opioid treatment programs–Evaluation and report 2020 Washington Code 71.24.595 – Statewide treatment and operating standards for opioid treatment programs — Evaluation and report 2019 Washington Code 71.24.595 2018 Washington Code 71.24.595 – Statewide treatment and operating standards for opioid treatment programs — Evaluation and report 2016 Washington Code 71.24.595 – Statewide treatment and operating standards for opiate substitution programs–Evaluation and report