2023 Washington Code 19.134.020 – Prohibited conduct

2022 Washington Code 19.134.020 – Prohibited conduct

2020 Washington Code 19.134.020 – Prohibited conduct

2019 Washington Code 19.134.020 – Prohibited conduct

2018 Washington Code 19.134.020 – Prohibited conduct

2016 Washington Code 19.134.020 – Prohibited conduct

2015 Washington Code 19.134.020 – Prohibited conduct

2014 Washington Code 19.134.020 – Prohibited conduct

2013 Washington Code 19.134.020 – Prohibited conduct

2009 Washington Code 19.134.020 – Prohibited conduct