09/01/2026
I'm Dr. Piron, board certified pediatrician and owner of MamaDoc NJ. Discussing car seat and booster seat safety comes up daily in my practice.
Most people know that infants and toddlers should be in car seats, but what are the recommendations for older kids and booster seats?
Here are the highlights:
1) stay in a forward facing harness seat at least until age 4 and until your child has outgrown the height or weight max for the seat (this is often through age 5-6 for many carseats). Don't rush the transition. Use the harness seat for as long as safely possible
2) once out of the harness seat, use a booster seat until your child is at least 4'9". Booster seats use the seatbelt but lift your child up into a safer position until they are big enough. The booster ensures the belt hits them properly across the lap and shoulder to provide the most safety and avoid potential injury.
3) Some states may have age cut offs, but most safety experts will recommend going by height and position in the seat instead of using an age cutoff. Most kids will hit the target height between ages 8-12
4) fit check to test if your child is ready to come out of the booster: they must sit all the way back, knees bend comfortably over the edge of the seat and feet flat on the floor. Seatbelt crosses low over the hips and across the mid shoulder, and your child is able to stay in this position the entire trip.
5) all children should ride in the backseat regardless of car seat/booster seat status until age 13
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