Administrative agencies like the Internal Revenue Service have the authority to write regulations to assist them in enforcing the statutes passed by Congress, and they are required by law to publish the regulations they issue. All regulations in force are organized by subject into fifty titles and published annually in the Code of Federal Regulations (CFR). The Code is available online at http://www.ecfr.gov/. This site has searching and browsing capabilities. The online version is current to the last business day. The C.F.R. is also available at https://www.gpo.gov/fdsys. This site contains PDF copies of the print version of the Code of Federal Regulations.
A print copy of the Code is shelved at M-N-11 in our Reference area. The index volume accesses the rules and regulations by subject and by agency.
About one fourth of C.F.R. titles are revised every three months, so, at any given date, some titles in the printed C.F.R. will be fairly current while others will be rather out of date. In order to determine if a particular rule found in the C.F.R. has been revised or additional rules on the subject have been issued since the relevant C.F.R. title was published, use the List of CFR Sections Affected (L.S.A.) which is shelved to the left of the C.F.R. This will refer you to the page in the Federal Register where any new rule affecting the old rule has been printed.
Proposed rules and adopted rules are printed every business day in the Federal Register (M-N-11 for the current year; B56-B58 for older issues). Each daily issue has a table of contents arranged by agency and an index that cumulates throughout the month listing all of the documents issued by each agency.
Wyoming agencies have similar authority to create law, though there is no official equivalent of the Federal Register or the Code of Federal Regulations. Wyoming regulations can be accessed online at the Wyoming Secretary of State's web site. They can be viewed or downloaded.
The Library has two commercial publications on Reserve at the Circulation Desk that parallel the functions of the Federal Register and the C.F.R. for Wyoming. The Wyoming Government Register is a monthly compilation of emergency rules, notices of proposed rule making, and other agency information.
The Code of Wyoming Rules is a loose-leaf compilation of administrative rules in force. It is organized according to issuing agency, but the publisher has added indexes by subject, rule number, and statutory authority. There is also a preface and user's guide at the beginning of each volume.