Once your child outgrows a booster seat at about 4 feet 9 inches.
Vehicle seat belts can be used safely if they are worn correctly.
Your child should sit straight against the back of the vehicle seat with the lap belt placed low over the top of the child’s thighs, not across the stomach.
The shoulder belt should lie flat across the center of your child’s chest. Never place a shoulder belt under the arm or behind the back.
Your child’s knees should bend at a 90 degree angle over the edge of the seat.