Despite the existence of laws in all 50 states requiring the use of car safety seats or child restraint devices for young children, more children are still killed as passengers in car crashes than from any other type of injury. Pediatricians and other health care professionals need to provide up-to-date, appropriate information for parents regarding car safety seat choices and proper use. Although the American Academy of Pediatrics is not a testing or standard-setting organization, this policy statement discusses the Academy’s current recommendations based on the peer-reviewed literature available at the time of publication and sets forth some of the factors that parents should consider before selecting and using a car safety seat.