Versions of 49 CFR 11.104 - Exempt research on LawServer 2024 49 CFR 11.104 – Exempt research 2023 49 CFR 11.104 – Exempt research 2022 49 CFR 11.104 – Exempt research 2021 49 CFR 11.104 – Exempt research 2020 49 CFR 11.104 – Exempt research 2019 49 CFR 11.104 – Exempt research