
Children who are at least 8 years old OR 4'9" in height, must be properly secured with the vehicle's adult safety belt. Children usually do not fit into an adult safety belt until they are 4’9”. If an adult safety belt does not fit properly, children should continue to use booster seats, even if they are older than age 8.
A child is properly secured in an adult safety belt when:
- The child can sit all the way back against the seat of the vehicle with knees bent comfortably over the edge of the vehicle’s seat.
- The lap belt fits low, across the thighs — never across the stomach.
- The shoulder belt fits flat across the collarbone and crosses the child’s chest. The shoulder belt should never be across the neck.
- The child can sit like this for the whole trip.
More information about adult safety belts: