You must be physically present in the United States when you file the Reentry Permit application. You will need to provide TWO documents to prove your Pennsylvania residency when applying for a REAL ID. Examples of acceptable residency documents include:.Use Form I131 Application for Travel Document. For permanent residents, the re-entry permit is valid for two years from the date of issue. 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. 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. FCDO travel advice for Portugal. Includes safety and security, insurance, entry requirements and legal differences. Travelers in the following categories are no longer eligible to travel or be admitted to the United States under the Visa Waiver Program (VWP):.