DHA-73 Passport Application Form. Please note that both parents should sign the DHA 73.Home Affairs will not accept a minor's application for passport without both parents' signatures unless there is a legal document provided. Any minor must have a long form birth certificate. A marriage license is required for mother if remarried with a different last name. 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. 4. Validity South African Passport: Child Passport: Document for Travel Purposes: 10 years from date of issue. Five years from date of issue. Download and complete the CPIAP request form, DS-3077 (one per child).