If you need to renew your passport , you may do it through the mail only if it expired after you turned 16, or less than two years ago. If your passport was issued to you as a minor, and you are now an adult, you must reapply for a passport in person as if it is your first one. Renewal forms are available at a passport agency, a designated courthouse, and at some US post offices. Visa A visa is an endorsement placed in your passport by a foreign government. It allows you to enter and stay in the country for a specified amount of time.
Every country has different visa requirements, and they are always subject to change.
Most countries, however, require a visa for a stay longer than three months. Your study abroad program information should include visa requirements. However, if it does not, you should inquire at the Consulate or Embassy of the country to which you are going. A directory of US Consular Posts can be found in the Office of International Education. Visa inquiries and applications should be done immediately.