Age appropriate safety restraint

"Age appropriate safety restraint" means, for a child under four years of age, a child restraint system (infant carrier, infant/toddler seat, or convertible safety seat) which meets the standards of the United States Department of Transportation designed to restrain, seat or position children. For a child four years of age or older, an age-appropriate safety restraint means a child restraint system or seat belt (lap belt or lap-shoulder belt combination).(R 401, 407)