Research guides

Code of Federal Regulations

Historical CFR

Occasionally there is a need to see what a CFR section looked like in a prior year. HeinOnline is the most comprehensive source to find older versions of the CFR. Lexis (beginning with 1981) and Westlaw (beginning with 1984) both provide access to older versions of the CFR. See the list below for more details.

Contact the Jenkins' Reference Librarians at 215.574.1505 or research@jenkinslaw.org for additional assistance on finding historical versions of the CFR.

Free Online Resources

Code of Federal Regulations govinfo (GPO)
CFR from 1997 - present (select Titles from 1996 also available). Can Browse by year and title. To search the CFR, click the orange "Search" button, select "Advanced", then under "Refine by Collection" select "Code of Federal Regulations". Search results can be further refined by using the side panel on the search results screen. For additional information and tips, see the About the Code of Federal Regulations page. List of CFR Sections Affected (1997-present) also available.

Fastcase

Code of Federal Regulations
Available on Fastcase. From the menu on the left, select Search Regulations > click the plus next to Archived Editions > click the plus next to Code of Federal Regulations > check the box next to the desired edition. Begins with 2011.

To browse the CFR, switch to "Browse" (located above the search box).

HeinOnline

Code of Federal Regulations
Available on HeinOnline.

1938 - present. Can browse by year, title, indexes and finding aids, and List of Sections Affected.

ProQuest Congressional

Code of Federal Regulations
Available on ProQuest Congressional. Select Regulations and make sure the "Select Publication" drop-down is set to "Code of Federal Regulations".

1938 - present. Can search by keyword or by citation.

Lexis

Archived Codes
Available on the library's Lexis computers. Begins with 1981.

From the Lexis Advance home page, under Explore Content, select Statutes & Legislation or Administrative Codes & Regs. The Archived Code Search is found in the Related Resources box on the right. Lexis requires a search string in order to conduct the search. If you have the citation, include it in the search box. Select "Administrative Codes", the desired year(s), and the desired jurisdiction(s). Then click "Search".

For example, if you wanted to see how 39 CFR § 551.5 looked in 2001, use the search string 39 CFR 551.5, select "Administrative Codes", enter 2001 in the date field, select U.S. Federal, then click "Search".

Lexis also allows you to find archived versions of the CFR when in the current CFR section. When looking at a current section, the "About" box on the right includes a link to archived versions, when available.

Westlaw

Code of Federal Regulations - Historical
Available on the library's Westlaw computers. Begins with 1984.

From the All Content tab, select Regulations > Code of Federal Regulations (CFR) > CFR Historical (located in the Tools & Resources box on the right). Click on the desired year. Westlaw requires a search string in order to conduct the search. Use the fields listed to help generate the search. If you have the citation, enter the title and section numbers, connected with an ampersand, in the "Citation" field.

For example, if you wanted to see how 39 CFR § 551.5 looked in 2001, once on the Code of Federal Regulations - Historical page, click "2001", enter 39 & 551.5 in the "Citation" field, and click the search icon.