National bank (United States)

In the United States, a national bank is an ordinary private bank operating within the federal government's regulatory structure, which usually but not always operates in multiple U.S. states, and is under the supervision of the Office of the Comptroller of the Currency. Depending on the matter, it also may have to comply with some U.S. state regulations. It is legally required to be a member of the Federal Reserve System. A national bank in the U.S. is distinguished from a state bank, whose permit or charter is granted by one of the U.S. states, and can only do business in that state.