If you are a U.S. citizen, you will need to renew your passport every ten years. The process is relatively simple, and can be done by mail or in person.
However, it is important to note that there are some circumstances in which you may need to renew your passport sooner. For example, if your passport has been damaged or if your name has changed, you will need to apply for a new passport.
To renew by mail, you must submit Form DS-82 and your most recent passport. You will also need to include two passport photos and the appropriate fee. To renew in person, you must schedule an appointment and bring Form DS-82, your most recent passport, two passport photos, and the appropriate fee.