Since the D visa does not allow you to stay in the U.S, there are several restrictions which you will have to follow with the D visa, you cannot:
- Stay in the U.S for more than the designated time.
- Study in the U.S.
- Find employment in the U.S.
- Extend the D visa.
- Adjust or change the status of the D visa.
- Apply for a Green Card with a D visa.
- Work for another company except the vessel or airline you were in
- Enter and leave the U.S from different dock or airport
- Do longshore work on a D visa
- Re-enter the U.S within 6 months