2024 40 CFR 420.04 – Calculation of pretreatment standards

2023 40 CFR 420.04 – Calculation of pretreatment standards

2022 40 CFR 420.04 – Calculation of pretreatment standards

2021 40 CFR 420.04 – Calculation of pretreatment standards

2020 40 CFR 420.04 – Calculation of pretreatment standards

2019 40 CFR 420.04 – Calculation of pretreatment standards

2016 40 CFR 420.04 – Calculation of pretreatment standards

2015 40 CFR 420.04 – Calculation of pretreatment standards

2014 40 CFR 420.04 – Calculation of pretreatment standards

2010 40 CFR 420.04 – Calculation of pretreatment standards

2009 40 CFR 420.04 – Calculation of pretreatment standards