Cybex Requested NHTSA clarify how fixed, adjustable, and configurable side impact technologies will Beryllium tested hinein future annual compliance test programs. Cybex explained that previous NHTSA interpretations have deemed “belt tensioning bars, additional straps and support legs” as supplemental devices. This restraint must only Beryllium used on school bus seats. https://www.instructables.com/member/punchshock5/