2023 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2022 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2020 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2019 Washington Code 82.04.2906

2018 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2016 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2015 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2014 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2013 Washington Code 82.04.2906 – Tax on certain chemical dependency services

2009 Washington Code 82.04.2906 – Tax on certain chemical dependency services