Versions of CFR > Title 7 > Subtitle B > Chapter I > Subchapter C > Part 51 > Subpart R > Definitions on LawServer 2024 CFR > Title 7 > Subtitle B > Chapter I > Subchapter C > Part 51 > Subpart R > Definitions 2023 CFR > Title 7 > Subtitle B > CHAPTER I > SUBCHAPTER C > PART 51 > Subpart R > Definitions 2022 CFR > Title 7 > Subtitle B > Chapter I > Subchapter C > Part 51 > Subpart R > Definitions – Definitions 2021 CFR > Title 7 > Subtitle B > Chapter I > Subchapter C > Part 51 > Subpart R > Definitions – Definitions 2020 CFR > Title 7 > Subtitle B > Chapter I > Subchapter C > Part 51 > Subpart R > Definitions