Division 2.33

‘Upper frontal protection system reference line’ means a line which identifies the upper limit to significant points of pedestrian contact with the frontal protection system. The line is the geometric trace of the upper most points of contact between a straight edge 700 mm long and the frontal protection system, when the straight edge, held parallel to the vertical longitudinal plane of the vehicle and inclined rearwards by 20°, is traversed across the front of the vehicle, while maintaining contact with the ground and with the surface of the frontal protection system (see Figure 14).

Where necessary the straight edge shall be shortened to avoid any contact with structures above the frontal protection system;