Document Title UN R51: Proposal for Supplement to 03 Series of amendments
Reference Number GRBP-82-22
Date
2 Sep 2025
Summary Proposal to make a correction to the procedure of free rolling tyre noise testing described in Annex 8.
Source(s) OICA
Rulemaking Area(s) UN R51 Vehicle Noise
Proposal Status Approved by GR
Meeting(s)
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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.