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 travel consent form letter is required for each traveling child. 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. Someone said I may have to get my wife to fill out some consent form since the child is going outside the US with one parent. The written consent authorization form to bring in a minor child(ren) must be updated each year. Download consent for Minor Visitation form. Do we need some sort of notarized consent to travel with them in this way? Or does it make no difference in this situation, since we are married to each other? This form is often required when a minor child will be traveling to another state or country without both parents being present.