Versions of 45 CFR 46.104 - Exempt research on LawServer 2024 45 CFR 46.104 – Exempt research 2023 45 CFR 46.104 – Exempt research 2022 45 CFR 46.104 – Exempt research 2021 45 CFR 46.104 – Exempt research 2020 45 CFR 46.104 – Exempt research 2019 45 CFR 46.104 – Exempt research