Most applicants who are age 1617 must apply in person using Form DS11. Passports for applicants 16 and older are valid for 10 years.Use if you are applying for the first time, for your child who is under age 16, or you don't meet our requirements to renew your passport. Renew Your Passport Online. All Applicants Must. Notice to Applicants Ages 16 and 17: At least one of your parent(s) or legal guardian(s) must know that you are applying for a U.S. passport. Passports for all minors under 16 and those aged 16 or 17 who cannot have both legal guardians present. You have your passport in your possession to submit with your application.