Most applicants who are age 1617 must apply in person using Form DS11. Passports for applicants 16 and older are valid for 10 years.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. Get passport services. Effective July 1, 2024, the Santa Clara County Clerk-Recorder's Office will no longer accept passport applications. Book an Appointment. Appointments must be reserved online and can be made up to two months in advance. Getting a New Passport for a Child: You cannot renew a passport for a child under age 16. You must apply again in person using Form DS-11. Find out how to apply for or renew a passport for an adult or a minor under 18.