SPANSET's Quality management continually tests materials and end products. They are checked continuously hinein SPANSET's own laboratory and hinein external testing programmes. This restraint must only be used on school bus seats. Entire seat directly behind must be unoccupied or have restrained occupants.” (The instruction's reference to a “restrained occupant” https://www.fcc.gov/fcc-bin/bye?https://www.ledteks.com/seatbelt-and-safety-belt-webbing