Any car seat experts out there?
I'm finding it hard to locate chapter and verse about when booster cushions, without a back, become an "appropriate child restraint."
DD1 is 5.5 and most of her friends now use boosters without a back. She's still in a high-back booster. She is small for her age and I prefer that she carries on using it, but there are occasions when she need to travel in someone else's car and I don't know how long I need to carry on making special arrangements to make sure she has her own seat.
I keep trying to work it out from the various web sites, but they make my brain spin!