Working Party on Noise and Tyres | Session 80 | 17-20 Sep
Geneva
Agenda Item 3.
UN Regulation No. 51 (Noise of M and N Categories of Vehicles)

GRBP will be informed about the activities of the Informal Working Group on Real Driving – Additional Sound Emission Provisions (IWG RD – ASEP).

GRBP is invited to consider corrections to the 03 series of amendments to UN Regulation No. 51 submitted by the experts from the International Organization of Motor Vehicle Manufacturers (OICA).

GRBP will recall that, at its previous session, the expert from the Informal Working Group on Measurement Uncertainties (IWG MU) presented a draft document for reference. During an in-depth discussion, several experts from contracting parties expressed concerns that the document could be misinterpreted as being legally binding and modifying the established sound limits in UN Regulation No. 51. In the absence of consensus, GRBP postponed the discussion to the present session.

Documentation
GRBP-79-48/Rev.1 Noise Measurement Uncertainties: Proposal to amend GRBP/2024/8
GRBP-80-04 UN R51: IWG ASEP Status report
GRBP-80-07/Rev.1 Reference document: Measurement Uncertainties when testing
GRBP-80-12 UN R51: Proposals for amendment (EC)
GRBP-80-21/Rev.1 UN R51: Proposal for a Supplement 12 to the 03 series of amendments (OICA)
GRBP-80-23 UN R51: Proposal on ESES (EC)
GRBP/2024/8 Measurement uncertainties when testing in UN Regulations under the purview of GRBP
GRBP/2024/22 UN R51: Proposal for corrections to the 03 series of amendments (OICA)