1. EB-1: Priority workers (Foreign nationals with extra-ordinary ability in the sciences, arts, education, business or athletics, Outstanding professors and researchers, Certain multinational managers and executives)
  2. EB-2: Foreign nationals who are members of the professions holding advanced degrees or who have exceptional ability
  3. EB-3: Skilled workers, professionals or other workers
  4. EB-4: Religious workers, special immigrant juveniles, broadcasters, armed forces members, NATO-6 employees and their family members, etc.