The Code of Federal Regulations (C.F.R.) is divided into 50 titles. Each title is divided into parts, subparts, and sections. A citation to a C.F.R. section includes the title number and section number. The first portion of the section number (before the decimal point) always consists of the C.F.R. "part" number. Thus, the citation 42 C.F.R. § 59.1 refers to Title 42, Part 59, Section 59.1.
The official print version of the C.F.R. consists of softbound volumes that are replaced each year with updated versions. The print version can be accessed in PDF on the govinfo.gov Code of Federal Regulations page. The cover page of each print C.F.R. volume indicates how current that volume is. Because a volume may be more than a year out of date, it is advisable to consult one of the following two electronic versions of the C.F.R., both of which are updated on a more frequent basis than the official version:
While these versions of the C.F.R. are unofficial, they contain regulations which have been updated by the official Federal Register (the daily government publication in which all federal regulations are initially published). The Federal Register is also available on govinfo.gov.