Versions of CFR > Title 26 > Chapter I > Subchapter A > Part 1 > special rule; definitions on LawServer 2024 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > special rule; definitions 2023 CFR > Title 26 > CHAPTER I > SUBCHAPTER A > PART 1 > special rule; definitions 2022 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > Special Rule; Definitions – Special Rule; Definitions 2021 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > special rule; definitions – special rule; definitions