Versions of 21 CFR Part 1 - General Enforcement Regulations on LawServer 2024 21 CFR Part 1 – General Enforcement Regulations 2023 21 CFR PART 1 – GENERAL ENFORCEMENT REGULATIONS 2022 21 CFR Part 1 – General Enforcement Regulations 2021 21 CFR Part 1 – General Enforcement Regulations 2020 21 CFR Part 1 – General Enforcement Regulations