Child safety seats and booster?

Question

can a 18 month old child sit on a booster seat if not how old do they have to be,

Answer 1

No,not at all.......minimum 3years age is suitable for that....

Answer 2

4 years AND 40lbs is the bare minimum for booster with seatbelt.  At 18months, most kids are under 30-35lbs and can still be rearfacing in a convertible carseat.

At the very least, at 18months a child must be in an appropriately fitting 5 point harness seat.

Answer 3

1. BEFORE YOUR FIRST BIRTHDAY LESS THAN 20 POUNDS REAR-FACING INFANT-ONLY CAR SEAT OR CONVERTIBLE SEAT USED IN REAR-FACING POSITION, SECURED IN THE BACK SEAT OF THE CAR.

2. 20–35 POUNDS CONVERTIBLE SEAT USED IN REAR-FACING POSITION, SECURED IN THE BACK SEAT OF THE CAR. LOOK FOR A CHILD SAFETY SEAT THAT IS RECOMMENDED FOR HEAVIER INFANTS.

3. WHEN YOU ARE 1, 2, 3, AND 4 20–40 POUNDS FACE FORWARD IN A CONVERTIBLE SEAT OR A FORWARD-FACING-ONLY SEAT OR HIGH-BACK BOOSTER/HARNESS IN THE BACK SEAT OF THE CAR.

4. WHEN YOU ARE 4, 5, 6, 7, OR 8 LESS THAN 4’9” (57 INCHES) TALL BELT-POSITIONING BOOSTER SEAT (NO BACK) OR HIGH-BACK BELT-POSITIONING BOOSTER SEAT IN THE BACK SEAT OF THE CAR.

5. WHEN YOU ARE 8, 9, 10, 11, OR 12 MORE THAN 4’9” (57 INCHES) TALL MAY USE AN ADULT SEATBELT, BUT MUST KEEP YOUR BACK AGAINST THE SEAT BACK, YOUR KNEES BENT OVER THE EDGE OF THE SEAT, AND YOUR FEET FLAT ON THE FLOOR IN THE BACK SEAT OF THE CAR.

6. WHEN YOU ARE MORE THAN 12 YEARS OLD MORE THAN 4’9” (57 INCHES) TALL MAY SIT IN THE FRONT PASSENGER SEAT OF THE CAR WITH AN ADULT SEATBELT.