The Code of Federal Regulations (C.F.R.) is the publication of administrative regulations issued by departments and agencies of the U.S. executive branch. The C.F.R. is organized by topic.
For more information, see the Code of Federal Regulations guide.
The Federal Register (F.R.) publishes proposed and final administrative rules and regulations by date, before they are printed in the C.F.R. Use the Federal Register to see if a regulation has been revised.
For more information, see the Federal Register guide.