"The Code of Federal Regulations (CFR) annual edition is the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation."
"The United States Statutes at Large, typically referred to as the Statutes at Large, is the permanent collection of all laws and resolutions enacted during each session of Congress."
Case law refers to the decision set forth by a judge or a group of judges. The case law then serves as a legal precedent for other cases and is imperative to consider in future cases and the following decisions.
To locate Federal or state cases, you can simply use the Look up a Legal Case box on the center-bottom of the page. This is the easiest way if you know the legal citation or party names. If you are searching by topic, select Search by Content Type --> Federal and State Cases on the top right.