2023 Washington Code 19.110.170 – Violations constitute unfair practice

2022 Washington Code 19.110.170 – Violations constitute unfair practice

2020 Washington Code 19.110.170 – Violations constitute unfair practice

2019 Washington Code 19.110.170 – Violations constitute unfair practice

2018 Washington Code 19.110.170 – Violations constitute unfair practice

2016 Washington Code 19.110.170 – Violations constitute unfair practice

2015 Washington Code 19.110.170 – Violations constitute unfair practice

2014 Washington Code 19.110.170 – Violations constitute unfair practice

2013 Washington Code 19.110.170 – Violations constitute unfair practice

2009 Washington Code 19.110.170 – Violations constitute unfair practice