Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. Your child will need a Child Travel Consent any time they're traveling without all their parents or legal guardians present.International Travel Authorization form for minor child. Florida Document Specialists. Reviews. Besides carrying your child's permission to travel form, it may be necessary to have other documentation on hand for your child. Consent-to-travel docs are basically fancy permission slips from a child's parents or legal guardian that state it's okay for them to travel with you. All visitors must have the application (DS-11)filled out (black ink only, no corrections and not signed), along with necessary documents, before checking in.