2023 Washington Code 18.20.320 – Health support services

2022 Washington Code 18.20.320 – Health support services

2020 Washington Code 18.20.320 – Health support services

2019 Washington Code 18.20.320 – Health support services

2018 Washington Code 18.20.320 – Health support services

2016 Washington Code 18.20.320 – Health support services

2015 Washington Code 18.20.320 – Health support services

2014 Washington Code 18.20.320 – Health support services

2013 Washington Code 18.20.320 – Health support services

2009 Washington Code 18.20.320 – Health support services