Versions of 26 CFR 1.170A-15 - Substantiation requirements for charitable contribution of a cash, check, or other monetary gift on LawServer 2024 26 CFR 1.170A-15 – Substantiation requirements for charitable contribution of a cash, check, or other monetary gift 2023 26 CFR 1.170A-15 – Substantiation requirements for charitable contribution of a cash, check, or other monetary gift 2022 26 CFR 1.170A-15 – Substantiation requirements for charitable contribution of a cash, check, or other monetary gift 2021 26 CFR 1.170A-15 – Substantiation requirements for charitable contribution of a cash, check, or other monetary gift