2023 Washington Code 48.110.120 – Commissioner may conduct investigations

2022 Washington Code 48.110.120 – Commissioner may conduct investigations

2020 Washington Code 48.110.120 – Commissioner may conduct investigations

2019 Washington Code 48.110.120

2018 Washington Code 48.110.120 – Commissioner may conduct investigations

2016 Washington Code 48.110.120 – Commissioner may conduct investigations

2015 Washington Code 48.110.120 – Commissioner may conduct investigations

2014 Washington Code 48.110.120 – Commissioner may conduct investigations

2013 Washington Code 48.110.120 – Commissioner may conduct investigations

2009 Washington Code 48.110.120 – Commissioner may conduct investigations