Versions of 26 CFR 1.951A-1 - General provisions on LawServer 2024 26 CFR 1.951A-1 – General provisions 2023 26 CFR 1.951A-1 – General provisions 2022 26 CFR 1.951A-1 – General provisions 2021 26 CFR 1.951A-1 – General provisions