Missouri Car Seat and Booster Seat Laws
Rear-Facing Car Seat
Law states no preference.
- Children 3 years and younger must be in a child safety seat.
- All children who weigh less than 40 pounds must be in a child safety seat.
- Children ages 4 through 7 years who weigh at least 40 pounds but less than 80 pounds and who are 4'9" or shorter must be in either a car seat or booster seat.
Children ages 4-7 who weigh at least 40 but less than 80 pounds and who are 4'9" or shorter must be secured by either a car seat or booster seat. Children who weigh at least 80 pounds or who are 4'9" or taller must be secured by either a booster seat or a seat belt.
- Children who weigh at least 80 pounds or who are at least 4'9" tall must be in either a booster seat or seat belt.
- All children under 16 years old must be in a seat belt.
Children under 16 should ride in the back seat.
Fines & Penalties
Maximum fine for first offense is $50.
Need more information on state laws? Learn more about the laws where you live.
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Source: "Child Passenger Safety Laws." Governors Highway Safety Association. Updated September 2011.
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