2023 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control

2022 Washington Code 77.55.051 – Spartina/purple loosestrife–Removal or control

2020 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control

2019 Washington Code 77.55.051

2018 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control

2016 Washington Code 77.55.051 – Spartina/purple loosestrife–Removal or control

2015 Washington Code 77.55.051 – Spartina/purple loosestrife–Removal or control

2014 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control

2013 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control

2009 Washington Code 77.55.051 – Spartina/purple loosestrife — Removal or control