U.S. Federal Laws are rules and regulations established by the national government of the United States. These laws apply to all states and are created by the U.S. Congress, which consists of the House of Representatives and the Senate. Federal laws cover a wide range of issues, including civil rights, immigration, and taxation. Once passed by Congress, federal laws are signed by the President and become enforceable across the country. They can be challenged in court, and the U.S. Supreme Court has the authority to interpret these laws and determine their constitutionality.