Office of the Comptroller of the Currency Bundesamt für Währungsaufsicht Office of the Comptroller of the Currency Oficina del Contralor de la Moneda Oficina del Contralor de la Moneda Bureau du contrôleur de la monnaie משרד המחשבות של המטבע मुद्रा नियंत्रक कार्यालय 通貨監督官事務所 Escritório do Controlador da Moeda 货币监理局 OCC The Office of the Comptroller of the Currency (OCC) is an independent bureau within the United States Department of the Treasury that was established by the National Currency Act of 1863 and serves to charter, regulate, and supervise all national banks and thrift institutions and the federally licensed branches and agencies of foreign banks in the United States.