bubbaray
New member
The NHTSA flyer linked to in post #8 of this thread definitely DOES say to booster to age 4-7. And it says to harness until the limits of the harnessed seat. Well, that could be age 8-9 for some kids in some of the HW/HH seats.
I'm not aware of any scientific evidence to support harnessing past age 5-ish and 40lbs. The Swedes have stellar child crash statistics and they go directly from RFg to boosters at age 4-5. They don't generally FFg harness at all. It may or may not be a valid comparison, given the differences in vehicles, driving style, etc, but the Swedish stats are pretty compelling to me.
JMHO.
I'm not aware of any scientific evidence to support harnessing past age 5-ish and 40lbs. The Swedes have stellar child crash statistics and they go directly from RFg to boosters at age 4-5. They don't generally FFg harness at all. It may or may not be a valid comparison, given the differences in vehicles, driving style, etc, but the Swedish stats are pretty compelling to me.
JMHO.