Versions of 21 CFR Part 1308 - Schedules of Controlled Substances on LawServer 2024 21 CFR Part 1308 – Schedules of Controlled Substances 2023 21 CFR PART 1308 – SCHEDULES OF CONTROLLED SUBSTANCES 2022 21 CFR Part 1308 – Schedules of Controlled Substances 2021 21 CFR Part 1308 – Schedules of Controlled Substances