Versions of 40 CFR 1501.12 - Incorporation by reference on LawServer 2024 40 CFR 1501.12 – Incorporation by reference 2023 40 CFR 1501.12 – Incorporation by reference 2022 40 CFR 1501.12 – Incorporation by reference 2021 40 CFR 1501.12 – Incorporation by reference