LPRs are entitled to leave the United States and apply for admission as a LPR returning to an un-relinquished domicile in the United States. However, lengthy trips abroad along with other factors may subject you to a risk that the ICE and/or USCIS may alleged that you have “abandoned” your LPR status and place you in removal proceedings. This typically occurs if the LPR has not been present in the United States for a period of more than 6 months and other factors indicate that the LPRs primary residence is not the United States. This should not be an issue if you plan to take trips abroad for durations of less than 6 months, have a bona fide residence in the U.S., and do not maintain a residence in another country. If you plan to take a trip abroad that will last longer than 6 months and/or the facts and circumstances of your particular situation may give the immigration officers cause to believe that the U.S. is not your residence, please contact your attorney well in advance of your planned departure (at least 120 days.) Finally, an LPR who travels outside the United States must have a valid foreign passport and I-551 (green card) in order to reenter the U.S. Be sure that your passport is up to date before you leave the U.S.