2023 Washington Code 81.20.060 – Limitation on frequency of investigations

2022 Washington Code 81.20.060 – Limitation on frequency of investigations

2020 Washington Code 81.20.060 – Limitation on frequency of investigations

2019 Washington Code 81.20.060

2018 Washington Code 81.20.060 – Limitation on frequency of investigations

2016 Washington Code 81.20.060 – Limitation on frequency of investigations

2015 Washington Code 81.20.060 – Limitation on frequency of investigations

2014 Washington Code 81.20.060 – Limitation on frequency of investigations

2013 Washington Code 81.20.060 – Limitation on frequency of investigations

2009 Washington Code 81.20.060 – Limitation on frequency of investigations