2024 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2023 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2022 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2021 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2020 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2019 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2016 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2015 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2014 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2010 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory

2009 40 CFR 422.20 – Applicability; description of the phosphorus consuming subcategory