Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents.A child travel consent form allows a minor to travel alone or with another person or group. Child's Information: The form includes the child's full name, date of birth, place of birth, and passport or identification details. My question is do you really need the form? Me and my older sister are traveling to Brazil over the summer in June. While it's recommended to have notarised written consent, it's definitely not required and in my experience you're highly unlikely to be asked for it. It's just a freeform letter that says your children have permission to travel with their other parent.