Search the Code of Federal Regulations. Identify the relevant CFR title(s) and part(s). Note the date of the CFR issue (given as the revision date in the upper left corner of the document).
Browse the latest monthly issue of the List of Sections Affected (LSA) for references to the CFR title(s) and part(s) identified above. The numbers are the pages in the Federal Register which contain changes to the particular CFR title(s) and part(s).
The Code of Federal Regulations (CFR) is a codification of the general and permanent rules published in the Federal Register by the Executive departments and agencies of the Federal Government. (1996-present)
The Electronic Code of Federal Regulations (e-CFR) is a prototype of a currently updated version of the Code of Federal Regulations (CFR). The e-CFR prototype is a demonstration project. It is not an official legal edition of the CFR.