Individuals, governments, business enterprises, trusts, associations, and nonprofit organizations that fulfill two criteria: (1) They have their center of economic interest outside the United States, and (2) they reside, or expect to reside, outside the United States for one year or more. Included in this definition are U.S. individuals living abroad for one year or more who are not employed by the U.S. government, foreigners residing in the United States for less than one year, and foreign affiliates of U.S. companies. In addition, foreign nationals employed in the United States by their home governments, foreign students enrolled at U.S. educational institutions, and international institutions located in the United States are also considered foreign residents.