The Constitution is the supreme law of the land. It is supplemented by the treaties entered into by the US government, both domestic and foreign. Congress enacts law pursuant to the Constitution. These laws are codified in the US Code (USC). Federal agencies charged with carrying out these laws operate under rules. Federal agency rules are codified in the Code of Federal Regulations (CFR). The federal courts interpret and apply the constitution, statutes and regulations in the cases before them. Their decision in these cases make up the common law. Court rules govern these proceedings. The Resources below provide access to each of these pieces of the federal law.
The Oyez Project at Chicago-Kent is a multimedia archive devoted to the Supreme Court of the United States and its work. It aims to be a complete and authoritative source for all audio recorded in the Court since the installation of a recording system in October 1955.
This site has a number of legal collections. The federal collection includes the U.S. Constitution, the U.S. Code (USC), the Code of Federal Regulations (CFR) and the Federal Rules (of Court) among others. Access to case law is also available at least for recent and landmark cases.