Working Party on Noise and Tyres | Session 81 | 18-21 Feb 2025
Geneva
Agenda Item 4.
UN Regulation No. 51 (Noise of M and N Categories of Vehicles)

GRBP will be informed about the activities of IWG RD – ASEP.

At the previous session, GRBP considered alternative proposals by the experts from the European Commission (EC) and from the International Organization of Motor Vehicle Manufacturers (OICA) regarding sound emission limits of electric vehicles equipped with exterior sound systems (ECE/TRANS/WP.29/GRBP/78, paras. 10-14) and agreed to establish a new group of interest on this issue. GRBP will be briefed on the activities of the new group.

GRBP may also wish to resume consideration of the revised document for reference prepared by experts from the Informal Working Group on Measurement Uncertainties (IWG MU).

Documentation
GRBP-80-07/Rev.1 Reference document: Measurement Uncertainties when testing
GRBP/2024/8 Measurement uncertainties when testing in UN Regulations under the purview of GRBP