Versions of 26 CFR 1.1221-1 - Meaning of terms on LawServer 2024 26 CFR 1.1221-1 – Meaning of terms 2023 26 CFR 1.1221-1 – Meaning of terms 2022 26 CFR 1.1221-1 – Meaning of terms 2021 26 CFR 1.1221-1 – Meaning of terms 2015 26 CFR 1.1221-1 – Meaning of terms 2014 26 CFR 1.1221-1 – Meaning of terms 2010 26 CFR 1.1221-1 – Meaning of terms 2009 26 CFR 1.1221-1 – Meaning of terms