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2. 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 Additional Sound Emission Provisions (IWG ASEP) and of the Informal Working Group on Measurement Uncertainties (IWG MU).

GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-18 | UN R51: Tyre performance study report
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments

GRBP is invited to consider a proposal that was prepared by IWG ASEP with the aim to clarify the current wording of UN Regulation No. 51.

GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-18 | UN R51: Tyre performance study report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)

Separately, GRBP will address a proposal by IWG ASEP that introduce Real Driving Additional Sound Emission Provisions (RD ASEP) as a preliminary test procedure for the purpose of collecting experience on the new test and evaluation concept.

GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-18 | UN R51: Tyre performance study report
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP will also consider proposals prepared by IWG MU that introduce a temperature- and test-track compensation for vehicle noise.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments

GRBP will receive a report on the activities of the Taskforce on Vehicle Sound (TF VS) and will revert to the draft TF VS guidelines (GRBP-74-03-Rev.1).

GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP-75-18 | UN R51: Tyre performance study report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound)
GRBP-75-32 | UN R51: TF Vehicles Sound - Status report
GRBP-75-32 | UN R51: TF Vehicles Sound - Status report
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments