Hello! Does anyone here perhaps know if there are certain legal guidelines for the use of materials as discs (in my case side panes of a commercial vehicle made of macrolon/polycarbonate or Plexiglas)? I have only found this up to now: B. Vehicles III. Construction and operating regulations §40 Disc wipers, windscreen wipers, defrosting and drying systems for discs (1) All panes – except mirrors and covers of lighting equipment The safety glass must be a glass or a glass-like material whose fragments cannot cause serious injury. Safety glass panes, which are important for the driver’s vision, must be clear, translucent and distortion-free. Are there any requirements because of the size of the side panes?