The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. What must I write in a child's travel consent form?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. If children are not travelling with both their parents, (ie: if they are travelling alone, or with another adult), this form can be used to give permission. You should bring a Child Travel Consent Letter and a Child Medical Consent Letter with you, as well as any other form of regular ID. The wizard is not an online application, and completing the wizard does not mean you will receive a passport. A marriage license is required for mother if remarried with a different last name. It would not be in your best interest to travel to PR without either the child's father's consent or a court order. If you have not yet registered your child's birth, please follow the instructions in the Vital Records section.