The City Clerk's Office is a designated passport acceptance facility. View requirements, fees, and how to apply for a passport.See what documents a child needs to travel to or from the US alone or with a parent or relative. Non-US citizen children traveling to the US. A notarized letter of consent is a crucial requirement when traveling with minors without both parents or guardians. The most common interpretation is that the traveling parent requires a notarized letter something not found in any custody order. San Antonio, Texas 78205. 4. How do I register to vote? Copies of birth certificate and a handwritten and signed note from my husband and a copy of his passport or license. Are you traveling with a grandchild, niece, nephew, or other child that you are not the guardian of?