2023 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2022 Washington Code 18.220.190 – Permitted activities–Certificate of licensing not required

2020 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2019 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2018 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2016 Washington Code 18.220.190 – Permitted activities–Certificate of licensing not required

2015 Washington Code 18.220.190 – Permitted activities–Certificate of licensing not required

2014 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2013 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required

2009 Washington Code 18.220.190 – Permitted activities — Certificate of licensing not required