California D r. Car seat legislation has resulted in the saving of many infants' lives and health. Now the sight of a loose baby in a moving car would appropriately alarm most of us. This information has been revised and updated. Car seats are designed for children up to the weight of 40 pounds.
Experts disagree as to which option is best.
This is because none of these solutions is ideal. Not one of them has been engineered for a school-age child. The Academy of Pediatrics and experts at Failure Analysis, a California firm that analyzes what went wrong in accidents, recommend against the use of any booster seats currently on the market once a child reaches 40 pounds. This usually happens when a child is 55 inches tall. For a child under 55 inches tall, The Academy of Pediatrics recommends the use a lap belt, and to put the shoulder strap behind the child.