They Are designed to prevent drivers and passengers from being completely ejected from a vehicle by spreading out their bodies’ energy over their shoulders, chest, and pelvis in a collision. NHTSA has considered these questions and attempted to use plain language rein promulgating this final rule. Please inform the agency http://www.bioguiden.se/redirect.aspx?url=https://www.ledteks.com/seatbelt-and-safety-belt-webbing