The U.S. Court of Appeals for the Third Circuit is one of the thirteen federal appellate courts in the United States. It hears appeals from federal district courts in the states of New Jersey, Pennsylvania, and Delaware, as well as some regulatory agencies. The court is based in Philadelphia, Pennsylvania and was established in 1891. This court reviews cases involving federal law, including civil rights, immigration, and criminal matters. Its decisions can be appealed to the Supreme Court of the United States, making it an important part of the federal judicial system. The Third Circuit aims to ensure justice and uphold the rule of law.