unit of service. unit of service. any individual, family, aggregate, organization, or community given nursing care. The level at which service is delivered varies with the particular unit entity.
A foreign affiliate as defined in inward FATS statistics is an enterprise resident in a country which is under the control of an institutional unit not resident in the same country. Control is determined according to the concept of the 'ultimate controlling institutional unit' (UCI).
The nonimmigrant classifications include: foreign government officials, visitors for business and for pleasure, aliens in transit through the United States, treaty traders and investors, students, international representatives, temporary workers and trainees, representatives of foreign information media, exchange visitors, fiance(e)s of U.S. citizens, intracompany transferees, NATO officials, religious workers, and some others.