Even better, Sunshine Kids is making the change retroactive on all U.S. models made in or after September 2008, so if you already own a Radian 65 (16500), Radian 80 (18500) or Radian XT (19500) car seat made after that time, you can go ahead and use it rear-facing to 40 lbs., according to Berger. The change will start to show up on new U.S. Radian car seat labels and in manuals by late summer or early fall.
A recent study showed that toddlers were more than 5 times safer on the road if they stayed rear-facing to age two. The increase in car seats with higher rear-facing weight limits and taller shells makes extended rear-facing well into the toddler years possible for most children.

