The EB-2 NIW (National Interest Waiver) is a U.S. employment-based green card category for individuals holding advanced degrees or possessing exceptional abilities in their respective fields. The National Interest Waiver allows eligible candidates to bypass the typically required labor certification process if they can demonstrate that their contributions significantly benefit the United States.

The EB1-A is an employment-based, first-preference green card category intended for individuals with an exceptional ability in the arts, sciences, business, education, or athletics. Applicants should have garnered significant recognition at the national or international level in their domain. This category allows individuals to self-petition for a green card, meaning they don't necessarily need a specific job offer or employer sponsorship.

The O-1A visa is a non-immigrant visa classification for individuals who possess extraordinary ability in the sciences, arts, education, business, or athletics. It is designed for those who have garnered significant national or international acclaim for their contributions and achievements. Applicants are required to demonstrate their outstanding expertise through a track record of accomplishments and recognitions.