You need to have the consent of both parents to enter Canada. If you are traveling alone, you need a letter of authorization signed by both parents. If you are traveling with one parent, you need a letter of authorization signed by the nontraveling parent.
A parental consent form for travel lets the airport and travel authorities know that a child is traveling alone and provides them with their emergency contact information.
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."
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."
Travel within Canada One piece of government-issued identification, such as an original birth certificate, health card, passport or non-government-issued ID (e.g. student card) is strongly recommended, however not mandatory for travel.
A consent letter says the other parent of the child agrees to you travelling with the child on specific dates to a specific location. A consent letter is not required in Canada but it can make travelling with children much easier.
What is included in a Child Travel Consent Form? the parents' and/or legal guardians' name(s) the child's or children's name(s) details of the adult (and, where applicable, organisation) accompanying the child. the child's medical information. the parents and/or legal guardians' emergency contact details.
Children 15 and under only need a birth certificate to cross into Canada by land or sea. By air, they must have a passport. Essentially they must have proof of citizenship. Your children, one assumes, are not dual citizens, so your friend's situation is not relevant.
For minors traveling alone to a foreign country for the first time: Duly accomplished DSWD Travel Clearance application form. Photocopy of either Birth Certificate or passport of the minor. Written consent of both parents or the solo parent or the legal guardian permitting the minor to travel alone to a foreign country.
Brazil Entry Requirements 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.