Versions of 40 CFR 55.9 - Enforcement on LawServer 2024 40 CFR 55.9 – Enforcement 2023 40 CFR 55.9 – Enforcement 2022 40 CFR 55.9 – Enforcement 2021 40 CFR 55.9 – Enforcement 2020 40 CFR 55.9 – Enforcement 2019 40 CFR 55.9 – Enforcement 2016 40 CFR 55.9 – Enforcement 2015 40 CFR 55.9 – Enforcement 2014 40 CFR 55.9 – Enforcement 2010 40 CFR 55.9 – Enforcement