Originally Posted by DahliaRW
There are no standards for testing rfing tethers. There may be a small safety difference, but it's not proven and it's not significant.
Weeeell, that's not exactly true. From the CPS enclyclopedia:
|As larger and heavier infants are carried rear-facing, the chance of an infant's head hitting a hard part of the vehicle is greater. Tethering a rear-facing convertible CR to the floor can reduce the risk of head and facial injuries in rear and side crashes by reducing head excursion.
Rear facing tethers is a pretty controversial topic not only among CPSTs, but also among researchers and car seat manufacturers. I find it very interesting that in the ~3 years that I have been referencing the RF tether section of the CPS encyclopedia, it has changed pretty significantly. It used to say that RF tethering didn't hurt in RF crashes and is pretty great in side impacts, and now it says the above. Pretty fascinating read, really, if you read the whole RF tether section. It describes the 2 schools of thought on the issue