At what age, height, and weight must a child be secured in a booster seat when traveling in a vehicle?

The correct answer outlines specific criteria for child passenger safety regarding the use of booster seats. In Mississippi, children are required to be secured in a booster seat until they reach the age of 4 to 7 years old, are less than 4 feet 9 inches tall, and weigh less than 65 pounds. This age range ensures that children are in a developmental stage where their small frames benefit from the additional support and height provided by a booster seat.

Using these measurements helps ensure that seat belts fit properly over a child's smaller body, reducing the risk of injury in the event of an accident. The height limit allows for the proper positioning of the seat belt across the shoulder and lap, while the weight restriction is set to account for the safety and effectiveness of the booster seat in a collision.

Ensuring children meet these criteria before transitioning them out of a booster seat is essential for their safety and compliance with state laws regarding child passenger safety.