EB-1A, EB-1B, Differences between EB1-Extraordinary Ability and EB1-Outstanding Researcher or Professor

The major differences between the EB1 Alien with Extraordinary Ability category or EB1 Outstanding Researcher or Professor category include:

1) The "EB1 Extraordinary Ability" category generally requires higher achievement and ability;

2) The "EB1 Extraordinary Ability'' category can apply to many different fields in the sciences, arts, education, business, or athletics, while the "EB1 Outstanding Researcher or Professor" category generally applies to scientific or scholarly fields;

3) The "EB1 Extraordinary Ability" category requires no specific employment or job offer, while the "EB1 Outstanding Researcher or Professor" category requires a job offer for a permanent research position or a tenured/tenure track teaching position;

4) One can self-petition in the "EB1 Extraordinary Ability" category without a U.S. employer's sponsorship, while the "Eb1 Outstanding Researcher or Professor" category requires a sponsorship from the alien's employer or prospective employer;

5) The "EB1 Outstanding Researcher or Professor" category requires at least three years experience in the field, while the "EB1 Extraordinary Ability" category has no specified minimum experience requirement for any particular field.