Versions of 26 CFR 50.1 - Introduction on LawServer 2024 26 CFR 50.1 – Introduction 2023 26 CFR 50.1 – Introduction 2022 26 CFR 50.1 – Introduction 2021 26 CFR 50.1 – Introduction 2020 26 CFR 50.1 – Introduction 2019 26 CFR 50.1 – Introduction 2016 26 CFR 50.1 – Introduction 2015 26 CFR 50.1 – Introduction 2014 26 CFR 50.1 – Introduction