2023 Washington Code 18.205.010 – Substance use disorder professional certification

2022 Washington Code 18.205.010 – Substance use disorder professional certification

2020 Washington Code 18.205.010 – Substance use disorder professional certification

2019 Washington Code 18.205.010 – Substance use disorder professional certification

2018 Washington Code 18.205.010 – Chemical dependency professional certification

2016 Washington Code 18.205.010 – Chemical dependency professional certification

2015 Washington Code 18.205.010 – Chemical dependency professional certification

2014 Washington Code 18.205.010 – Chemical dependency professional certification

2013 Washington Code 18.205.010 – Chemical dependency professional certification

2009 Washington Code 18.205.010 – Chemical dependency professional certification