Versions of 21 CFR 207.17 - Who must register? on LawServer 2024 21 CFR 207.17 – Who must register? 2023 21 CFR 207.17 – Who must register? 2022 21 CFR 207.17 – Who must register? 2021 21 CFR 207.17 – Who must register? 2020 21 CFR 207.17 – Who must register? 2019 21 CFR 207.17 – Who must register? 2016 21 CFR 207.17 – Who must register?