I recently had riders who brought infants in carriers which are merely part of a stroller. It is not an approved car seat. In my state, New Jersey, and infant has to be in a rear-facing car seat with a 5-point harness. The mothers that hold their kids around in these things don't even buckle their kid in until I insist. The only thing there is to attach the buckle to are two little fingers on the top have the carrier that the belt can slide into. I've done a little research on the topic and these are not legal car seats. I know it's going to lead to arguments with passengers but I am not going to accept these rides. I will call the company and inform them as to why I canceled. It's not worth the risk. I'm curious to know if anybody else is aware of and is addressing this issue.