For individuals of extraordinary ability in the sciences, education, business, arts or athletics. O-1 status allows employment for an initial term of up 3 years, and can be annually extended in perpetuity.
To qualify, an individual must provide evidence of:
- Receipt of a major internationally-recognized award, such as the Nobel Prize; OR
- At least three of the following:
- recognized awards for excellence in the field of endeavor
- membership in associations requiring outstanding achievements of their members, as judged by recognized experts in their disciplines or fields
- Published material in professional trade publications or major media, relating to work in the field
- Participation as a judge of the work of others in the same or allied field of specialization
- Scientific, scholarly, or business-related contributions of major significance in the field
- Authorship of scholarly articles in the field, in professional journals or other major media
- Employment in an essential capacity with organizations with distinguished reputation
- A higher salary or other remuneration for services, as evidenced by contracts or other such documentation
Dependents of an O-1 may apply for an O-3 visa. An O-3 may not be employed but may register for classes. O-3 status is valid for as long as the O-1 status is valid.
This status permits Canadian and Mexican citizens to be employed in the United States as a professional in academic fields defined by NAFTA.
The TN non-immigrant can enter the U.S. for up to 3 years at a time and renew status in perpetuity.
TN status is employment-specific, so the visa holder can work only for UNL, and 100% of the salary must be paid by UNL.
For more information on TN status, visit U.S. Department of State.
B-1/B-2 and WB/WT statuses
- B-1: for short-term (<90 days) business visits to participate in scientific, professional or business meetings; or to do independent research.
- B-2: a short-term (<90 days) visa used for tourism, visiting family and friends, or medical treatment.
Not for visitors participating in any business or professional activity, including students or longer-term scholars.
- WB & WT: a short term (<90 days) visa waiver for citizens of some countries to visit the U.S.
Business travelers have WB status, and tourists have WT status.
- WB/WT visitors cannot extend their stay, and must leave the U.S. to change status.
Subject to specific passport and pre-screening requirements. Denial of a recent U.S. entry visa application could result in an inability to meet these requirements.