Versions of 26 CFR 1.59A-10 - Applicability date on LawServer 2024 26 CFR 1.59A-10 – Applicability date 2023 26 CFR 1.59A-10 – Applicability date 2022 26 CFR 1.59A-10 – Applicability date 2021 26 CFR 1.59A-10 – Applicability date 2020 26 CFR 1.59A-10 – Applicability date