Requirements for child restraints. 1.children under the age of 8, less than 4 feet 9 inches must be inn a child restraint system 2.children under 8 who are 4 feet 9 inches tall or taller must have the safety belt instead of the system. 3.infants under the age of 1 must be in an infant car seat in the back seat, facing the rear/back of the vehicle 4.driver will receive a citation, a fine and three point if the fail to properly restrain the child.