In Brazil, the law states that children must be protected, when traveling in the car, as follows:
Children under ten years of age must ride in the rear seats, except for exceptions such as vans.
The child may be transported in the front seat, with the respective restraint device, when the back seat of the vehicle only has a two-point seat belt (such belts do not allow the attachment of the devices regulated in Brazil), and provided that all care is taken (seat position with maximum backward movement, etc.).
Children under 7 and a half years of age must use appropriate restraint devices; children of that age and older must wear seat belts, like all other occupants.
The requirements for children of 7 years of age and under do not apply to public transport vehicles (such as for-hire vehicles), autonomous passenger transport vehicles (cabs), school vehicles and other vehicles with a gross vehicle weight of more than 3.5 tons (such as trucks and buses).