What is the interview process for the O-2 Visa? If your petition is authorized…

How to extend your stay with a O-3 Visa?

You can file Form I-539, Application to Extend/Change Nonimmigrant Status, if the principal visa holder (O-1 or O-2) files for an extension. Extensions are granted in one-year increments, with no limit on the number of times you can request.