597.319—U.S. financial institution.
         The term U.S. financial institution means:
    
    
        
        (a) 
         Any financial institution organized under the laws of the United States, including such financial institution's foreign branches;
    
    
    
        
        (c) 
         Those branches, offices and agencies of foreign financial institutions which are located in the United States, but not such foreign financial institutions' other foreign branches, offices, or agencies.