Children at least one year and at least 20 lbs. in rear-facing seats but longer if seat provides to heavier weight.
Harness straps at or below shoulder level
Harness straps should be at or above shoulders
Most convertible seats require top slot for forward-facing
Belt positioning booster seats must be used with both lap and shoulder belt
Provides protection for head
Do not place infants in the front seat of vehicles with air bags
All children age 12 and under should ride in the back seat
Make sure the lap belt fits low and tight to avoid abdominal injuries
TO FIT A SEAT BELT PROPERLY A CHILD MUST:
Keep back and buttocks against vehicle seat back. Keep the shoulder belt on the should resting snugly over the chest and lap belt across the hip/upper thigh. Keep knees completely bent over the edge of the vehicle seat. Keep feet flat on the floor, and able to stay comfortably seated this way for the entire trip.
Applied to child under the age of nine (9) years of age or children under 90 lbs.