Providing parental consent when a child travels without both custodial parents. Ports of entry in many countries have security measures to prevent international child abduction. If your child is traveling alone or with only one parent or legal guardian, they may need a letter of consent from the other custodial parent.
I, ______________________________________________ (name of parent), am the ______ (mother) ______ (father) of __________________________________ , aged ____________ , and do hereby give my consent for (him)(her) to travel with __________________________________________________________________ (name/address of traveling ...
The legal parent/legal guardian who cannot apply with the child can give consent using this form or a written statement that includes all of the information on this form. This form or the written statement must be notarized.
In the USA, though, unless there's a court order requiring permission from both parents, a child may travel (even to overseas) with either parent/guardian without showing proof of permission from the other parent.
In order to prevent international child abductions, Mexican law requires that minors traveling without their parents, or with only one parent, present proof that they have their parents' authorization for travel. They should carry a notarized letter from the absent parent or parents authorizing travel into Mexico.
The letter of consent must name you as the designated responsible adult, the relationship of you to the child (grand-parent / family friend etc), the parents full contact details (address / telephone number) and be signed by the parent. It is also advisable to have a copy of the parent's passport with you.