Some items are only available on campus or will require authentication via EUID and Password at the point of use.
When Congress decides to regulate in a certain area, it will enact a statute which delegates the power to issue specific rules and regulations to an administrative agency that specializes in that area. In other words, when a law is passed by Congress, the law authorizes executive agencies to promulgate rules that interpret and fill in the administrative details of that law. These regulations have the force and effect of law.
Administrative law is a complicated category of law. Administrative law encompasses a wide assortment of materials, including the following:
The two main sources of administrative law are the Federal Register—a daily journal that records government agency regulations, proposed regulations, and public notices; and the Code of Federal Regulations—an annual compilation of regulations currently in force, arranged by subject matter. These sources also publish executive orders, proclamations, and reorganization plans issued by the president. Administrative decisions are typically published by the administrative agencies themselves in paper and/or on their websites.
Legal databases such as LexisNexis or Westlaw (or their student versions, Nexis Uni and Westlaw Campus Research) provide unofficial versions of administrative laws that are often more up to date, provide convenient, one-stop searching, and often include annotations and links to related materials.
The Federal Register: What It Is, and How to Use It is a tutorial sponsored by the Office of the Federal Register (OFR) and the National Archives and Records Administration (NARA) to explain such topics as the historical background and legal basis of the Federal Register and Code of Federal Regulations, how the regulatory process works, and how to find information in print and online.

Source: The Federal Rulemaking Process: An Overview (CRS Report RL32240)
A citation to the Federal Register contains four elements:

"Federal Register Citation Example" by Westminster Law Library is licensed under Creative Commons Attribution—Non Commercial 4.0 International License.
A citation to the Code of Federal Regulations (C.F.R.) contains four elements:

"Code of Federal Regulations Citation Example" by Westminster Law Library is licensed under Creative Commons Attribution—Non Commercial 4.0 International License.
The main difference between the Federal Register and the Code of Federal Regulations is that the Code is a compilation of regulations that have been promulgated and have the force of law. The Register is a daily report of regulations that are working their way through the process of becoming finalized. For current regulations, search the Code of Federal Regulations. For proposed and pending regulations, search the Federal Register.
All proposed and final regulations are first published by the Government Printing Office (GPO) in chronological order in the Federal Register.
These government websites provide free access to the Federal Register.
Next, regulations are then codified by subject in the Code of Federal Regulations (C.F.R.). The C.F.R. is organized in to 50 broad subject titles, and is revised annually.
These government websites provide free access to the <i>Code of Federal Regulations</i>. They vary in years covered and how up to date they are.
These databases are available to the UNT community and to visitors at the UNT campus.