Document Title UN R51: Proposal for correction to 03 series of amendments
Reference Number GRBP-82-23
Date
1 Sep 2025
Summary Supplement 7 introduced an inconsistency in R51.03 Annex 8. As currently written, it requires free-rolling tyre noise testing to be conducted in accordance with both ISO 362-3:2016 and Annex 3, Appendix 3
Source(s) OICA
Rulemaking Area(s) UN R51 Vehicle Noise
Proposal Status Approved by GR
Meeting(s)
Downloads
UNECE server .pdf format .pptx format
GAR server .pdf format .pptx format
Excerpts from session reports related to this document
GRBP | Session 82 | 3-5 Sep 2025

8. The expert from OICA also proposed clarifications and corrections for UN Regulation No. 51 (ECE/TRANS/WP.29/GRBP/2025/20 as amended by GRBP-82-07, GRBP-82-22, GRBP-82-23). GRBP adopted these proposals as part of draft Supplement 11 to the 03 series of amendments to UN Regulation No. 51 and agreed to freeze it for the time being, awaiting other amendment proposals before transmission to WP.29 and AC.1.