When a rule becomes final, it is codified in the Code of Federal Regulations, the subject compilation of federal rules currently in force. The CFR is divided by subject into 50 titles (some, but not all, of which are the same the the titles in the U.S. Code). The CFR is revised annually, with a portion of the titles issued at the beginning of each calendar quarter. The CFR can be updated in print by using the List of Sections Affected and the Current List of CFR Sections Affected, but it is more often updated online in the e-CFR or LexisNexis and Westlaw.
The Code of Federal Regulations (CFR) is available from: