2024 40 CFR 1700.9 – No-discharge zones by State prohibition

2023 40 CFR 1700.9 – No-discharge zones by State prohibition

2022 40 CFR 1700.9 – No-discharge zones by State prohibition

2021 40 CFR 1700.9 – No-discharge zones by State prohibition

2020 40 CFR 1700.9 – No-discharge zones by State prohibition

2019 40 CFR 1700.9 – No-discharge zones by State prohibition

2016 40 CFR 1700.9 – No-discharge zones by State prohibition

2015 40 CFR 1700.9 – No-discharge zones by State prohibition

2014 40 CFR 1700.9 – No-discharge zones by State prohibition

2010 40 CFR 1700.9 – No-discharge zones by State prohibition

2009 40 CFR 1700.9 – No-discharge zones by State prohibition