2023 Washington Code 18.83.220 – Supervised experience hours — Reduction for certified chemical dependency professionals

2022 Washington Code 18.83.220 – Supervised experience hours–Reduction for certified chemical dependency professionals

2020 Washington Code 18.83.220 – Supervised experience hours — Reduction for certified chemical dependency professionals

2019 Washington Code 18.83.220 – Supervised experience hours — Reduction for certified chemical dependency professionals