Anyone who wishes to obtain a re-entry permit must file Form I-131, Application for Travel Document. Fill out your form(s) online and print it.All required supporting documents for the form(s). Read these instructions carefully to properly complete this form. If you need more space to complete an answer, use a separate sheet of paper. Use Form I131 Application for Travel Document. For permanent residents, the re-entry permit is valid for two years from the date of issue. You will require a visa to travel to the United States unless you are eligible to enter the United States visa free under the Visa Waiver Program. Please read these instructions carefully to properly complete this form. If you need more space to complete an answer, use a separate sheet(s) of paper.