Yes. Since customs officials must always be on the lookout for missing children, parents or guardians travelling with children require a proof of citizenship for that child plus consent from all legal guardians. Therefore, in order to travel to another country with your grandchildren, you must have a Letter of Consent to travel signed by all of the childrens’ guardians. Many countries will not allow entry or exit without such documentation. In general, unless there is a court order stating otherwise, the parents of a child are that child’s legal guardians. If guardianship was determined by a court order, have a notarized copy of the court order with you when you travel. Last Reviewed: August 2015