What is an O-1 or O-2 consultation letter? Petitions for O-1 and O-2 visas must be accompanied by consultation letters, also called advisory opinions, from a designated U.S. peer group or labor ...

O-1 visa holders coming to NU from outside the U.S. need to check-in with the IO before starting employment at NU. To do so, please complete the H-1B/E-3/O-1 Beneficiary Check-In Form and bring your ...

Current O-1 visa holders need to apply for O-1 extensions in advance of their expiration. The Office of International Student and Scholar Services (OISS) only accepts O-1 requests from Northwestern ...