Missouri Child Restraint Required
Under 4 yrs or under 40 lbs in child safety seat
4-7 yrs and 40-80 lbs and 4'9" or shorter in child safety seat or booster seat
4 yrs or over and 80 lbs or over or taller than 4'9" in booster seat or safety belt
Adult Safety Belt Permissible
8-16 yrs
4 yrs and over and over 80 lbs or over 4'9" tall
NHSTA Car Seat Recommendations Flyer