Versions of 26 CFR 1.317-1 - Property defined on LawServer 2024 26 CFR 1.317-1 – Property defined 2023 26 CFR 1.317-1 – Property defined 2022 26 CFR 1.317-1 – Property defined 2021 26 CFR 1.317-1 – Property defined 2015 26 CFR 1.317-1 – Property defined 2014 26 CFR 1.317-1 – Property defined 2010 26 CFR 1.317-1 – Property defined 2009 26 CFR 1.317-1 – Property defined.