2023 Washington Code 18.122.030 – Registration, certification, and licensure

2022 Washington Code 18.122.030 – Registration, certification, and licensure

2020 Washington Code 18.122.030 – Registration, certification, and licensure

2019 Washington Code 18.122.030 – Registration, certification, and licensure

2018 Washington Code 18.122.030 – Registration, certification, and licensure

2016 Washington Code 18.122.030 – Registration, certification, and licensure

2015 Washington Code 18.122.030 – Registration, certification, and licensure

2014 Washington Code 18.122.030 – Registration, certification, and licensure

2013 Washington Code 18.122.030 – Registration, certification, and licensure

2009 Washington Code 18.122.030 – Registration, certification, and licensure