2024 40 CFR 272.1300 – State authorization

2023 40 CFR 272.1300 – State authorization

2022 40 CFR 272.1300 – State authorization

2021 40 CFR 272.1300 – State authorization

2020 40 CFR 272.1300 – State authorization

2019 40 CFR 272.1300 – State authorization

2016 40 CFR 272.1300 – State authorization

2015 40 CFR 272.1300 – State authorization

2010 40 CFR 272.1300 – State authorization

2009 40 CFR 272.1300 – State authorization