This agenda item relates to UN R58 Rear Underrun Protection Devices.

40. The expert from OICA presented ECE/TRANS/WP.29/GRSG/2019/32 introducing requirements for aerodynamic devices. The expert from CLEPA introduced GRSG-117-46 with further clarification of the area of the aerodynamic devices with limited hardness. The expert from EC presented GRSG-117-50 amending the definition of aerodynamic devices and equipment in ECE/TRANS/WP.29/GRSG/2019/32.

41. Following detailed technical discussions and adjustment of language used, GRSG adopted ECE/TRANS/WP.29/GRSG/2019/32 as amended by GRSG-117-51. The secretariat was requested to submit it to WP.29 and AC.1 as draft supplement 1 to the 03 series of amendments to UN Regulation No. 58 for consideration at their March 2020 sessions.