Child car seats: your legal responsibility As a driver, you are legally responsible to ensure children are safely seated. This article provides an overview of your responsibilities. Under the age of three The current law for children under the age of three states that if the child is in the front seat they must use the correct child car seat. It is illegal to carry a child in a rearward-facing child seat in the front if there is an active front passenger airbag: the airbag mu