| See also: |
| 2018 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.851 to 1.907), Revised as of April 1, 2018 |
| 2016 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.441 to 1.500), Revised as of April 1, 2016 |
| 2012 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.301-1.400), Revised as of April 1, 2012 |
| 2011 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.1551-End of Pt. 1), Revised as of April 1, 2011 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.61-1.169), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.170-1.300), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.301--1.400), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.401-1.440), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.441-1.500), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.641-1.850), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.851-1.907), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.908-1.1000), Revised as of April 1, 2009 |
| 2009 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.1551-End of Pt. 1), Revised as of April 1, 2009 |
| 2008 | Paperback | Code of Federal Regulations, Title 26, Internal Revenue, Pt. 1 (Sections 1.61-1.169), Revised as of April 1, 2008 |