When a lawful permanent resident plans to depart the U.S. temporarily and does not expect to return to the United States for a year, often he or she is advised to obtain (before departing the U.S.) a Reentry Permit. A Reentry Permit is a travel document for green card holders that helps to protect an individual from inadvertently abandoning permanent resident status. After paying the refugee travel document fee, it usually takes the individual between 90 days and seven months to receive a Reentry Permit after applying. There is no maximum number of times they can apply for a Reentry Permit.

To obtain the Reentry Permit travel document, the individual must apply while in the U.S. and obtain biometrics (fingerprints and a digital photograph) prior to departing the U.S. Once the biometrics have been taken, the individual can leave the U.S. and the travel document can be mailed to him or her abroad.

The rules regarding fingerprints and photographs have been confusing for those under age 14 or over 79 because these individuals are not required to pay a biometrics fee or have their fingerprints taken. They are, however, being notified by USCIS that they are to appear at application support centers for biometrics. Just recently, however, USCIS has advised that such individuals are not required to attend a biometrics appointment. Instead, applicants under the age of 14 or over 79 can submit two passport-style photographs when applying for the Reentry Permit (in addition to all other required documentation), and USCIS will issue the travel document without requiring the applicant to attend an appointment.