National Interest Waiver Green Card of the United States of America Prepared by Fredrick, Lee & Kim Last update: July 9, 2020 1. Introduction There are 5 categories in the employment based (“EB”) immigration to the United States of America: EB-1, EB-2, EB-3, EB-4 and EB-5. Those categories generally require sponsorship from a U.S. employer which includes an offer of permanent employment in the U..