Article 83 of the Statute of Children and Adolescents determines that no child or adolescent, under 16 years old, you may travel outside the district where you reside unaccompanied by your parents or guardians without express judicial authorization.
This authorization will not be required when it concerns the same federative unit (same State of residence) or when the location is included in the same metropolitan region.
Until recently, minors under 12 years of age were allowed to travel unaccompanied by their parents or guardians without any type of authorization. However, this was changed in 2019 by the National Policy for the Search for Missing Persons, establishing 16 as the age limit for minors to travel without authorization.

The law establishes as accompanying or responsible persons: parents, grandparents, great-grandparents, siblings, uncles, nieces and nephews, or any adult expressly authorized by the parent or guardian. Proof of relationship must be provided through identification documents.
In cases where parents are also minors, when unaccompanied, they require judicial authorization or the presence of a legal guardian. Authorization is not required for minors accompanied by their parents. If accompanied by only one parent, authorization from the other parent, with a notarized signature, is required.
The authorization form for domestic travel is available on the website of the Court of Justice in your state, and for international travel it is available on the website of the Federal Police.
It is also possible to issue an Electronic Travel Authorization (AEV) through the Electronic Notarial Acts System at the following address: https://www.e-notariado.org.br/customer/travel-permit-providers
The AEV does not replace cases in which judicial authorization is required, such as in the case of international travel.

