Versions of 26 CFR 1.1561-0 - Table of contents on LawServer 2024 26 CFR 1.1561-0 – Table of contents 2023 26 CFR 1.1561-0 – Table of contents 2022 26 CFR 1.1561-0 – Table of contents 2021 26 CFR 1.1561-0 – Table of contents 2015 26 CFR 1.1561-0 – Table of contents 2014 26 CFR 1.1561-0 – Table of contents