2023 Washington Code 18.380.050 – Licensure or certification requirements

2022 Washington Code 18.380.050 – Licensure or certification requirements

2020 Washington Code 18.380.050 – Licensure or certification requirements

2019 Washington Code 18.380.050 – Licensure or certification requirements

2018 Washington Code 18.380.050 – Licensure or certification requirements

2016 Washington Code 18.380.050 – Licensure or certification requirements