2024 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2023 CFR > Title 40 > CHAPTER I > SUBCHAPTER N – EFFLUENT GUIDELINES AND STANDARDS

2022 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2021 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2020 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2019 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2016 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2015 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards

2014 CFR > Title 40 > Chapter I > Subchapter N – Effluent Guidelines and Standards