Versions of 26 CFR 57.10 - Applicability date on LawServer 2024 26 CFR 57.10 – Applicability date 2023 26 CFR 57.10 – Applicability date 2022 26 CFR 57.10 – Applicability date 2021 26 CFR 57.10 – Applicability date 2015 26 CFR 57.10 – Effective/applicability date 2014 26 CFR 57.10 – Effective/applicability date