Session 68 | Geneva | 12-14 Sep 2018
Agenda Item 4. (a) UN R51: Development
This agenda item relates to UN R51 Vehicle Noise.
Working Party on Noise | Session 67 | 24-26 Jan 2018

11. The expert from OICA proposed amendments to Regulation No. 51 with the aim to ensure transparency during the type approval process in situations where the manufacturer could either use mechanical or electronic devices to control the gear shift, or take measures to avoid accelerations greater than 2.0 m/s² (ECE/TRANS/WP.29/GRB/2018/2 and GRB-67-17). The proposal received questions and/or comments from the experts of China, France, Germany, Japan and ISO. GRB adopted the proposals, as contained in Annex III to the session report, and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their June 2018 sessions as a draft Supplement 4 to the 03 series of amendments to Regulation No. 51.

World Forum for the Harmonization of Vehicle Regulations | Session 175 | 18-22 Jun 2018
GRB-68-02 | UN R51.03: Comments on tyre selection (China and CATARC)
GRB/2018/10 | UN R51: Proposal for Supplement 5 to the 03 series of amendments