Mississippi law requires children of what age to use a belt-positioning booster seat?

Mississippi law specifically mandates that children who are four years of age but less than seven years old must use a belt-positioning booster seat when traveling in a vehicle. This requirement is in place to ensure that safety belts fit properly on children who have outgrown their forward-facing car seats but are still too small for standard seat belts. Using a booster seat helps position the seat belt correctly across the child's body, significantly reducing the risk of injury in the event of a crash.

Children under four years would generally be required to use a toddler car seat, while children who are seven years or older are typically allowed to use the standard seat belt without a booster seat, assuming they meet the height and weight requirements. Thus, the law is designed to provide optimal protection to children during their critical growth phases.