If you are not a U.S. citizen, you may need permission to return to the U.S. after traveling abroad. This permission is granted through a travel document. Travel documents are also given to foreign nationals who want to travel, but cannot get a passport from their country of nationality.
Re-entry Permit is a travel document issued to lawful permanent residents and conditional residents to re-enter the U.S. after traveling abroad.
---------------------------------------------------------------------- ----------
Who needs Reentry Permit?
Lawful permanent residents and conditional residents require Reentry Permits to re-enter the U.S. after travel of one year or more.
---------------------------------------------------------------------- ----------
How do I file for Re-entry Permit?
You must file Form I-131, Application for a Travel Document, complete with supporting documentation, photos and applicable fees with the USCIS.