If a court has formally made you guardian of a child, you can make a Child Travel Consent to authorize a non-parent (such as a grandparent or family friend) to travel with your child.
If you share legal guardianship and one of you will travel without the other legal guardian, you will need to make a Child Travel Consent signed by the other guardian.
You can also use a Child Travel Consent to make travel easier for yourself: If you are the only legal guardian, you can travel internationally without consent. However, the Bloomwell Child Travel Consent can create an easy-to-read declaration of your sole guardianship, which can help you avoid unpleasant questions or delays when you travel with your child.