How To Fill Out Form I-131. 1. All parents or legal guardians must consent for their child to get a passport.Parents must submit a birth certificate or legal documents showing guardianship. 1. Fill Out Form DS-11 and Print It 2. Get Evidence of US Citizenship (and a photocopy) 3. A minor travel consent form is needed when a child is traveling without one or both of their legal guardians. Fill out your form(s) online and print it. All required supporting documents for the form(s). The written consent authorization form to bring in a minor child(ren) must be updated each year. Download consent for Minor Visitation form.