Types of Child Restraint Systems
There are three main types of child restraint systems: rear-facing child seats, forward-facing child seats, and booster seats. They are classified by the child's age, height, and weight.
Rear-Facing Child Restraint System

In a rear-facing child restraint system, the seat cushion supports the child's back. The harness system holds the child in place and, in the event of an accident, reduces pressure on the neck and spine.
All children under one year old must always ride in rear-facing child restraint systems. There are several types of child restraint systems. Infant-only seats must be installed rear-facing. 3-in-1 child restraint systems usually have higher rear-facing height and weight limits, which allows the child to remain rear-facing for a longer period.
Use the rear-facing child restraint until your child reaches the height and weight limits specified by the restraint manufacturer.
Forward-Facing Child Restraint

A forward-facing child restraint protects the child's body with a harness. Use the forward-facing restraint until the child reaches the height and weight limits specified by the restraint manufacturer.
Once your child exceeds the height and weight limits for the forward-facing position, a booster seat may be used.
Booster Seats
A booster is a child restraint designed to adapt the vehicle seat belt to fit a child. It positions the seat belt so that it rests on the strongest parts of the child's body. Keep children in a child restraint until they are large enough to use the vehicle seat belt alone.
For proper seat belt use, the lap belt must be positioned low on the hips, not across the stomach. The shoulder belt must cross the shoulder and chest, not the face or neck. Children under 13 years old must always be properly secured to reduce the risk of injury in a crash, sudden stop, or sudden maneuver.
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