what does the na mean after a bank name
National bank In the modern United States, the term national bank has a precise meaning: a banking institution chartered and supervised by the Office of the Comptroller of the Currency ("OCC"), an agency in the U.S. Treasury Department, pursuant to the National Bank Act. Inclusion in the bank's name of the word National, the designation National Association, or its abbreviation N.A. is a required part of the distinguishing legal title of a national bank, as in "Citibank, N.A." Many state banks, by contrast, are chartered by the applicable state government agencies (usually the state's department of banking). The Federal Deposit Insurance Corporation (FDIC) insures deposits at both national and state banks.