2023 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions

2022 Washington Code 90.56.320 – Unlawful for oil to enter waters–Exceptions

2020 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions

2019 Washington Code 90.56.320

2018 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions

2016 Washington Code 90.56.320 – Unlawful for oil to enter waters–Exceptions

2015 Washington Code 90.56.320 – Unlawful for oil to enter waters–Exceptions

2014 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions

2013 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions

2009 Washington Code 90.56.320 – Unlawful for oil to enter waters — Exceptions