2024 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2023 CFR > Title 26 > CHAPTER I – INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY

2022 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2021 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2020 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2019 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2016 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2015 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2014 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury

2010 CFR > Title 26 > Chapter I – Internal Revenue Service, Department Of The Treasury

2009 CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury