Unless there is a legal order that states a parent cannot leave the US or otherwise travel without consent, then it's not required. Taking a child on a trip or vacation is never kidnapping in the absence of a court order that states otherwise.
I, Full Name, (mother|father) of Child Full Name to travel to (Destination City, State, Country) on (date of departure) with an expected return of (date of return). I may be contacted at (phone number including country code if traveling from overseas). I may have included a photo of my driver's license.
Typically, minors under the age of 18 do not have to present identification for domestic U.S. travel. Airlines will accept identification from the responsible adult on behalf of the minor(s). For international travel, minors under the age of 18 must present the same travel documents as the adult.
Anyone under the age of 18 will need the consent of their parent or legal guardian if they want to travel. Specifically, in order to pass through border security and go anywhere abroad, children must bring a travel consent form to prove that their guardian has approved for them to travel alone, or with someone else.
Recommended Consent Letter for Children Travelling Abroad. Information about travelling child. Information about accompanying person (leave blank if child is travelling alone) Contact information during trip. Signature(s) of person(s) giving consent. Signature of witness.
Non-U.S. citizen children traveling to the U.S. A letter of consent, preferably in English and notarized, from the other parent or signed by both custodial parents. The letter should say: "I acknowledge that my child is traveling outside the country with the name of the adult with my permission."
Non-U.S. citizen children traveling to the U.S. A letter of consent, preferably in English and notarized, from the other parent or signed by both custodial parents. The letter should say: "I acknowledge that my child is traveling outside the country with the name of the adult with my permission."
``Children under age 18 traveling alone, with one parent, or with a third party must have a notarized, written authorization from the absent parent or legal guardian. It must be translated into Portuguese and authenticated by a Brazilian embassy or consulate.''