The law of the United States comprises many levels of codified and uncodified forms of law, of which the supreme law is the nation's Constitution, which prescribes the foundation of the federal govern
Constitution of the United States
The United States Congress, the federal bicameral legislature, enacts federal statutes in accordance with the Constitution.
The Supreme Court of the United States is the highest judicial authority in interpreting federal law, including the federal Constitution, federal statutes, and federal regulations.
Law affects every aspect of American life, including parking lots. Note the citations to statutes on the sign.
The United States Code, formally The Code of Laws of the United States of America, is the official codification of the general and permanent federal statutes of the United States. It contains 53 title
Law of the United States
…Congress, treaties ratified by the Senate, regulations promulgated by the executive branch, and case law originating from the federal judiciary. The United States Code is the official compilation and codification of general and permanent federal statutory law. The Constitution provides that it, as well as federal laws…
A few volumes of the official 2012 edition of the United States Code
A few volumes of an annotated version of the United States Code