2023 Washington Code 48.30.240 – Rate wars prohibited

2022 Washington Code 48.30.240 – Rate wars prohibited

2020 Washington Code 48.30.240 – Rate wars prohibited

2019 Washington Code 48.30.240

2018 Washington Code 48.30.240 – Rate wars prohibited

2016 Washington Code 48.30.240 – Rate wars prohibited

2015 Washington Code 48.30.240 – Rate wars prohibited

2014 Washington Code 48.30.240 – Rate wars prohibited

2013 Washington Code 48.30.240 – Rate wars prohibited

2009 Washington Code 48.30.240 – Rate wars prohibited