Q: What is Advance Parole?
A: Advance Parole is the re-entry permit that you must apply for if you wish to re-enter the U.S. after foreign travel while you are waiting for your Green Card.
If you do not have the Advance Parole re-entry permit and you leave the U.S., you may be denied re-entry.
Note: If you are on an H-1B or L-1 Visa, you do not need the Advance Parole Re-entry permit. You may re-enter the U.S. on your H-1B or L-1 Visa, provided you are still in valid H-1B or L-1 status.