I'm in NYS and when DS2 was in UPK the school attempted to transport him in just a seat belt in a Suburban too. I looked into it and while it seemed to me that a Suburban was clearly defined as a school "vehicle", not a school "bus", both the school and state troopers (I contacted a CPST I knew) felt the law was contradictory in it's description of a school bus and that it could be argued that a Suburban is considered a bus and therefore exempt from the child restraint requirement. The school seemed to have little knowledge or regard for crash dynamics as if being painted yellow magically made it safe. They ultimately let me to purchase and donate a new hbb to the UPK program, which would be used for my DS since no one else was requesting one for their DC . It was ridiculous! As I posted
here, the school seemed to be more concerned about the liability of damages to someone's booster seat and the hassle it would be for them use than the potential injuries a child could sustain from being improperly restrained. I do think it was ignorance, rather than blatant disregard for student safety, but still they weren't hearing the message I was trying to convey that these Suburbans were not an appropriate choice for transporting small children without child safety seats.