2023 Washington Code 90.56.340 – Duty to remove oil

2022 Washington Code 90.56.340 – Duty to remove oil

2020 Washington Code 90.56.340 – Duty to remove oil

2019 Washington Code 90.56.340

2018 Washington Code 90.56.340 – Duty to remove oil

2016 Washington Code 90.56.340 – Duty to remove oil

2015 Washington Code 90.56.340 – Duty to remove oil

2014 Washington Code 90.56.340 – Duty to remove oil

2013 Washington Code 90.56.340 – Duty to remove oil

2009 Washington Code 90.56.340 – Duty to remove oil