The '''Code of Federal Regulations (CFR)''' is the [[code (law)|codification ]] of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation. Each volume of the CFR is updated once each calendar year and is issued on a quarterly basis.
* Titles 1-16 are updated as of January 1st
* Titles 17-27 are updated as of April 1st