Final answer:
New Jersey law mandates specific child restraint systems based on age: rear-facing seats for ages 0 to 2.5, forward-facing seats for ages 2.5 to 6, and booster seats for ages 6 to 13 to ensure children's safety in vehicles.
Step-by-step explanation:
New Jersey (NJ) law states that all children must use a child restraint system appropriate for their age and size when riding in a vehicle. Specifically, children ages 0 to 2.5 must be secured in a rear-facing car seat with a harness until they reach the weight or height limit of the car seat. For children ages 2.5 to 6, a forward-facing car seat with a harness must be used until they surpass the car seat's maximum height or weight capacity. Additionally, children ages 6-13 should transition to a booster seat until they are big enough to properly fit into a seat belt. Lastly, although not mandated by child restraint laws, it is highly recommended that children ages 13-20 continue to use a seat belt for their safety while in a vehicle.