2023 Washington Code 70.90.230 – Insurance required

2022 Washington Code 70.90.230 – Insurance required

2020 Washington Code 70.90.230 – Insurance required

2019 Washington Code 70.90.230

2018 Washington Code 70.90.230 – Insurance required

2016 Washington Code 70.90.230 – Insurance required

2015 Washington Code 70.90.230 – Insurance required

2014 Washington Code 70.90.230 – Insurance required

2013 Washington Code 70.90.230 – Insurance required

2009 Washington Code 70.90.230 – Insurance required