EB-1 is an employment based, first preference visa. Under EB-1 classification, EB-1A extraordinary ability applies to petitioners who have extraordinary ability in the sciences, arts, education, business, or athletics through sustained national or international acclaim. The achievements of applications must be recognized in the field through extensive documentation.
EB-1B is an employment-based visa for the outstanding professors or researchers who have the international recognition. Unlike self-petitioned EB-1A visa, EB-1B should be filed petition by the employers rather than the beneficiary of the petition.
EB-2 national interest waiver (NIW) is an employment based, second preference visa. NIW applies to petitioners of exceptional ability and who are members of the professions holding advanced degrees. For EB-2s a job offer and a labor certification is generally required. This requirement can be waived if the petitioner demonstrates that granting the EB-2 petition would be in the national interest of the United States.
In general, under the EB-5 program, individuals are eligible to apply for lawful permanent residence in the United States if they make the necessary investment in a commercial enterprise in the United States and create or, in certain circumstances, preserve 10 full-time jobs for qualified United States workers.
PERM (Program Electronic Review Management) is an electronic processing system for filing labor certification applications for employment based green card. Under the PERM system, labor certification applications are filed electronically and directly with the U.S. Department of Labor (DOL). A permanent labor certification issued by the Department of Labor (DOL) allows an employer to hire a foreign worker to work permanently in the United States. The employment-based preference categories that require PERM Labor Certification are EB-2 (other than a National Interest Waiver) and EB-3.