Versions of 26 CFR 1.45R-1 - Definitions on LawServer 2024 26 CFR 1.45R-1 – Definitions 2023 26 CFR 1.45R-1 – Definitions 2022 26 CFR 1.45R-1 – Definitions 2021 26 CFR 1.45R-1 – Definitions 2020 26 CFR 1.45R-1 – Definitions 2019 26 CFR 1.45R-1 – Definitions 2016 26 CFR 1.45R-1 – Definitions 2015 26 CFR 1.45R-1 – Definitions