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Working Party on Noise and Tyres

Session 80

17-20 Sep 2024 | Geneva

Agenda Item 3. UN Regulation No. 51 (Noise of M and N Categories of Vehicles)

Documentation

Annotations

GRBP-80-04 UN R51: IWG ASEP Status report

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

GRBP-80-23 UN R51: Proposal on ESES

GRBP/2024/22 UN R51: Proposal for corrections to the 03 series of amendments

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-80-07/Rev.1 Reference document: Measurement Uncertainties when testing

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.

GRBP-79-48/Rev.1 Noise Measurement Uncertainties: Proposal to amend GRBP/2024/8

GRBP/2024/8 Measurement uncertainties when testing in UN Regulations under the purview of GRBP

GRBP-80-12 UN R51: Proposals for amendment

GRBP-80-21/Rev.1 UN R51: Proposal for a Supplement 12 to the 03 series of amendments

GRBP-80-31 ASEP : ACEA study

GRBP-80-20/Rev.1 UN R138: Background to proposal for the Application of Noise Limits to EVs fitted with Exterior Sound Enhancement Systems (ESES)