Child Restraint systems other than harnesses, restraints designed for use by children with physical disabilities, school bus child restraint systems, and booster seats 2. The cylinder specified hinein S4.3(durchmesser eines kreises) shall Beryllium inserted rein the actuation portion of a lever released buckle for determination of compliance with the requirement. https://www.northwestu.edu/?URL=https://www.ledteks.com/seatbelt-and-safety-belt-webbing