Preference System (Immigration Act of 1990)

    1.    unmarried sons and daughters of U.S. citizens;
    2a.  spouses and children of permanent residents;
    2b.  unmarried sons and daughters of permanent residents;
    3.    married sons and daughters of U.S. citizens;
    4.    brothers and sisters of U.S. citizens.

 

The employment-based preferences are:

1. priority workers (persons of extraordinary ability, outstanding professors and researchers, and certain multinational executives and managers;
2. professionals with advanced degrees or aliens with exceptional ability;
3. skilled workers, professionals (without advanced degrees), and needed unskilled workers;
4. special immigrants;
5. employment creation immigrants (investors).