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Geneva
(Latest 13 April 2022)
| Agenda | Formal | Informal | Report |
Attendance
1. Adoption of the agenda.

In accordance with Chapter III, Rule 7 of the Rules of Procedure (TRANS/WP.29/690/Rev.2) of the World Forum for Harmonization of Vehicle Regulations (WP.29), the first item on the provisional agenda is its adoption.

GRBP-75-01 | GRBP: Updated annotated provisional agenda for the 75th (February 2022) session
GRBP-75-01 | GRBP: Updated annotated provisional agenda for the 75th (February 2022) session
GRBP-75-23 | GRBP: Running order of the agenda for the 75th (February 2022) session
GRBP/2022/1 | GRBP: Annotated provision agenda for the 75th (February 2022) session
GRBP-75-23 | GRBP: Running order of the agenda for the 75th (February 2022) session
GRBP/2022/1 | GRBP: Annotated provision agenda for the 75th (February 2022) session
GRBP-75-01 | GRBP: Updated annotated provisional agenda for the 75th (February 2022) session
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-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
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-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
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-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties

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-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
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-75-05 | 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-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
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-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.

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-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
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-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP will also consider proposals prepared by IWG MU that introduce a temperature- and test-track compensation for vehicle noise.
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
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-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
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-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.

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) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
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-75-08 | RE3.: How to handle measurement uncertainties
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
GRBP-75-32 | UN R51: TF Vehicles Sound - Status report
GRBP-75-32 | UN R51: TF Vehicles Sound - Status report
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP/2022/3 | UN R51: Proposal for Supplement 10 to the 03 series of amendments Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP-75-04/Rev.1 | UN R51: Proposal for transitional provisions for Supplements 7 and 8 to 03 series of amendments
GRBP-75-05 | UN R51: IWG Measurement Uncertainty status report
GRBP-75-06/Rev.1 | UN R 51: IWG Measurement Uncertainties - Revised Terms of Reference
GRBP/2022/4 | UN R51: Proposal for Supplement 9 to 03 series of amendments Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force
GRBP-75-16 | UN R51: Study on future sound limit values for type approval for vehicle categories M & N Study to evaluate the potential and the feasibility of limit value reductions in type approval and the translation to real road traffic conditions
GRBP-75-17 | UN R51: Presentation of the study on futures sound limits values for type-approval for vehicles of category M & N
GRBP-75-18 | UN R51: Tyre performance study report A study to assess the influence of tyre performances (Rolling Resistance, Wet Grip, Noise level, ...) on each other, in order to understand the improvement potential of noise emissions.
GRBP-75-19/Rev.1 | UN R51: Presentation on the tyre performance study
GRBP-75-19/Rev.1-Add.1 | UN R51: Presentation on tyre performance study; extended program - tyre wear
GRBP-75-20 | UN RT51: Tyre performance aggregation study Purpose of study was to specify any potential improvement or deterioration of noise performance in light of the other parameters and to provide the necessary information regarding the possible additional tightening of the limits, without undermining the overall balance that has to take into account also other performances.
GRBP-75-21/Rev.1 | UN R51: Presentation on the tyre performance aggregation study
GRBP-75-32 | UN R51: TF Vehicles Sound - Status report
GRBP-75-36 | UN R51: Proposal for amendment to Supplement 10 to the 03 series of amendment Proposal by experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification. The proposed changes for up to Supplement 6.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
GRBP-75-38 | UN R 51: IWG ASEP Status Report
GRBP-75-40 | UN R51: Proposal for amendment to 03 series of amendments
GRBP-75-41 | UN R51: Presentation on proposal to amend 03 series of amendment Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-08 | RE3.: How to handle measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP-75-21/Rev.1 | UN R51: Presentation on the tyre performance aggregation study
GRBP/2022/8 | UN R51: Proposal for Supplement 8 to 03 series of amendments Text prepared by the experts of the Informal Working Group on Measurement Uncertainties (IWG MU) in order to introduce measures to reduce variability.
GRBP-75-37 | UN R51: Proposal for amendment to Supplement 9 to the 03 series of amendments Proposal by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to amend Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.
3. UN Regulation No. 138 (Quiet road transport vehicles).

GRBP may wish to revert to the proposal by the expert from Switzerland which prohibits operation of the acoustic vehicle alerting system (AVAS) outside the specification speed range from 0 km/h up to and inclusive 20 km/h.

GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments
GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments
GRBP-75-02/Rev.1 | Proposal for amendment to Regulations No. 51, 117, 138
GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development Presentation by ISO TC43/SC1/WG42
GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development Presentation by ISO TC43/SC1/WG42
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG
GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG

GRBP may also expect a progress report of the Informal Working Group on Quiet Road Transport Vehicles for the Global Technical Regulation (IWG QRTV GTR).

GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments
GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments
GRBP-75-02/Rev.1 | Proposal for amendment to Regulations No. 51, 117, 138
GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development Presentation by ISO TC43/SC1/WG42
GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development Presentation by ISO TC43/SC1/WG42
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG
GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG
GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development Presentation by ISO TC43/SC1/WG42
GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference Text prepared by the experts of the Informal Working group on Measurement Uncertainties (IWB MU) in order to introduce a general guideline.
GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.
GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments
GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision
GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG
GRBP-75-02/Rev.1 | Proposal for amendment to Regulations No. 51, 117, 138
GRBP-75-02/Rev.1/Add.1 | ISO 10844 : 2021 Technical changes
4. Tyres:
4. (a) UN Regulation No. 30 (Tyres for passenger cars and their trailers)

GRBP may wish to receive an update on the proposal for a new definition of “radial tyre” that was submitted to the previous session by the experts from France and the European Commission.

GRBP-74-07 | UN R30: Comments on the proposal for a supplement to the 02 series of amendments (ECE/TRANS/WP.29/GRBP/2021/9) Request for additional data and information in the event of a future, similar, proposal under the 1998 Agreement, which would require ensuring compatibility with other enforcement systems.
GRBP-74-07 | UN R30: Comments on the proposal for a supplement to the 02 series of amendments (ECE/TRANS/WP.29/GRBP/2021/9) Request for additional data and information in the event of a future, similar, proposal under the 1998 Agreement, which would require ensuring compatibility with other enforcement systems.
GRBP/2021/9 | UN R30: Proposal for a Supplement to the 02 series of amendments Proposal to expand and improve the current definition of a radial structure while ensuring the radial tyres key features (mechanical decoupling between the tread and the bead).
GRBP/2021/9 | UN R30: Proposal for a Supplement to the 02 series of amendments Proposal to expand and improve the current definition of a radial structure while ensuring the radial tyres key features (mechanical decoupling between the tread and the bead).
GRBP/2021/10 | Proposal for amendments to UN Regulations No. 54, 75, 106, 108, 109 Proposal to amend the definition of "radial tyre" in UN Regulations No. 54, 75, 106, 108 and 109 based on the proposal for UN Regulation No. 30 in document GRBP/2021/9.
GRBP-74-07 | UN R30: Comments on the proposal for a supplement to the 02 series of amendments (ECE/TRANS/WP.29/GRBP/2021/9) Request for additional data and information in the event of a future, similar, proposal under the 1998 Agreement, which would require ensuring compatibility with other enforcement systems.
GRBP-75-22 | UN R30: Comments on proposal to amend the definition of radial structure
4. (b) UN Regulation No. 54 (Tyres for commercial vehicles and their trailers

GRBP is invited to address a proposal submitted by the expert from the European Tyre and Rim Technical Organisation (ETRTO) that aims to consolidate the calculation of reference dimensions with that provided in United Nations Global Technical Regulation (UN GTR) No. 16.

GRBP-75-31/Rev.2 | UN R54: Proposal for Supplement 25 to the 00 series of amendments Proposal to avoid placing requirements in the Definitions section and to facilitate the text by making use of the definition of "service description" that was introduced by Supplement 24.
GRBP/2021/13 | UN R54: Proposal for Supplement 25 to the 00 series of amendments Proposal to clarify the use of an additional load/speed combination for a tyre type.
GRBP/2022/6 | UN R54: Proposal for amendments Proposal to remove an inconsistency in the marking provisions and extend production of the "regroovable" symbol or word "REGROOVABLE" beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.
GRBP/2022/6 | UN R54: Proposal for amendments Proposal to remove an inconsistency in the marking provisions and extend production of the "regroovable" symbol or word "REGROOVABLE" beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.
GRBP/2022/6 | UN R54: Proposal for amendments Proposal to remove an inconsistency in the marking provisions and extend production of the "regroovable" symbol or word "REGROOVABLE" beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.
GRBP-75-31/Rev.2 | UN R54: Proposal for Supplement 25 to the 00 series of amendments Proposal to avoid placing requirements in the Definitions section and to facilitate the text by making use of the definition of "service description" that was introduced by Supplement 24.
GRBP/2021/13 | UN R54: Proposal for Supplement 25 to the 00 series of amendments Proposal to clarify the use of an additional load/speed combination for a tyre type.
GRBP/2022/6 | UN R54: Proposal for amendments Proposal to remove an inconsistency in the marking provisions and extend production of the "regroovable" symbol or word "REGROOVABLE" beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.
4. (c) UN Regulation No. 106 (Tyres for agricultural vehicles and their trailers)

GRBP is invited to consider a proposal that was prepared by the expert from ETRTO with the aim to align the definitions of “diagonal”, “bias-ply” and “bias belted” tyre structures with the definitions in UN Regulations Nos. 30 and 75.

GRBP/2022/7 | UN R106: Proposal for amendments Proposal to align the definitions of “diagonal” or “bias-ply” and “bias belted” tyre structures to the definitions given in UNvR30 and R75, to improve the text with regard to description of the composition of the size designation for metric tyres, and to resolve an apparent contradiction regarding the prefixes IF and VF.
GRBP/2022/7 | UN R106: Proposal for amendments Proposal to align the definitions of “diagonal” or “bias-ply” and “bias belted” tyre structures to the definitions given in UNvR30 and R75, to improve the text with regard to description of the composition of the size designation for metric tyres, and to resolve an apparent contradiction regarding the prefixes IF and VF.
GRBP/2022/7 | UN R106: Proposal for amendments Proposal to align the definitions of “diagonal” or “bias-ply” and “bias belted” tyre structures to the definitions given in UNvR30 and R75, to improve the text with regard to description of the composition of the size designation for metric tyres, and to resolve an apparent contradiction regarding the prefixes IF and VF.
4. (d) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in a Worn State (IWG WGWT).

GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-26/Rev.1 | UN R117: Presentation on the concept for addressing wet grip on worn tyre requirements for C2 and C3 tyres
GRBP-75-29 | UN R117: Proposal for amendments to the 03 series of amendments
GRBP-75-30 | UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition

GRBP will recall that, at the previous session, it adopted draft amendments on the procedure and thresholds on wet grip performance for C1 tyres in worn state and noted that, with the aim to complete the proposal and remove few square brackets, an informal document would be prepared for this session.

GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-26/Rev.1 | UN R117: Presentation on the concept for addressing wet grip on worn tyre requirements for C2 and C3 tyres
GRBP-75-29 | UN R117: Proposal for amendments to the 03 series of amendments
GRBP-75-30 | UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition
GRBP-75-25/Rev.1 | UN R117: Proposal for amendments
GRBP-75-26/Rev.1 | UN R117: Presentation on the concept for addressing wet grip on worn tyre requirements for C2 and C3 tyres
GRBP-75-29 | UN R117: Proposal for amendments to the 03 series of amendments
GRBP-75-30 | UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition
GRBP-75-27 | UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 | UN R117: IWG WGWT - revised Terms of Reference
GRBP/2021/12 | UN R117: Proposal for amendments Proposal from the Worn Tyres working group to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12
GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.
GRBP-75-27 | UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 | UN R117: IWG WGWT - revised Terms of Reference
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
4. (e) UN Regulation No. 141 (Tyre pressure monitoring system)

GRBP will address a proposal that was prepared by the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI) in order to implement the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS) in paragraph 5. of the 01 series of amendments to UN Regulation No. 141.

GRBP-75-10 | UN R141: proposal for amendments to Supplement 2 to the 01 series of amendments Text prepared by the Task Force on Tyre Pressure Monitoring System and Tyre Installation (TF TPMSTI) with the aim to implement the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS)
GRBP/2022/2 | UN R141: Proposal for Supplement 2 to the 01 series of amendments Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).
GRBP/2022/2 | UN R141: Proposal for Supplement 2 to the 01 series of amendments Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).
GRBP-75-10 | UN R141: proposal for amendments to Supplement 2 to the 01 series of amendments Text prepared by the Task Force on Tyre Pressure Monitoring System and Tyre Installation (TF TPMSTI) with the aim to implement the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS)
GRBP-75-11 | UN R141: TF TPMSTI Status report
GRBP-75-33 | UN R141: Proposal for a Supplement to 01 series of amendments Proposal to clarify some prescriptions and correct some text inconsistencies
GRBP-75-34 | UN R141: Presentation on the proposal for new Supplement to the 01 series of amendments
GRBP/2022/2 | UN R141: Proposal for Supplement 2 to the 01 series of amendments Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).
GRBP-75-33 | UN R141: Proposal for a Supplement to 01 series of amendments Proposal to clarify some prescriptions and correct some text inconsistencies
GRBP/2022/2 | UN R141: Proposal for Supplement 2 to the 01 series of amendments Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).
GRBP/2022/2 | UN R141: Proposal for Supplement 2 to the 01 series of amendments Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).
4. (f) Draft UN Regulation on studded tyres

GRBP will be briefed on the activities of the Task Force on Studded Tyres (TF ST) and will consider proposals prepared by TF ST.

GRBP-75-09 | Studded Tyres task force: Status report to the 75th GRBP session
GRBP-75-09 | Studded Tyres task force: Status report to the 75th GRBP session
5. Draft UN Regulation on reversing alarm.
GRBP-75-12 | UN R Reversing Alarm: TF RWS Status report
GRBP-75-13 | UN R Reversing Alarm: Proposal for amendments Proposal for amendments to ECE/TRANS/WP.29/GRBP/2022/5
GRBP/2022/5 | Proposal for a new UN Regulation on reverse warning devices Text, all tables and figures in this proposal have been prepared by the experts of the Task Force on Reverse Warning Sound (TF RWS) with the aim to draft a new UN Regulation concerning the approval of audible reverse warning devices and of motor vehicles with regard to their audible reverse warning signals.
6. Exchange of information on national and international requirements on noise levels.
7. Proposals for amendments to the Consolidated Resolution on the Construction of Vehicles
GRBP/2022/9 | IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
GRBP-75-08 | RE3.: How to handle measurement uncertainties
8. Development of the International Whole Vehicle Type Approval system.
9. Highlights of the recent sessions of the World Forum for Harmonization of Vehicle Regulations
GRBP-75-24 | General information and WP.29 highlights
10. Exchange of views on the future work of the Working Party on Noise and Tyres
GRBP-75-35 | GRBP work program priorities
11. Other business.
GRBP-75-14 | UN R109: Proposal for amendments to the 01 series of amendments Propose a new scheme of approval for Retreaded snow tyres for use in severe snow conditions
GRBP-75-15 | Whole Life Compliance: Proposal for a Framework document
GRBP-75-39/Rev.1 | TF Tyres Abrasion (TF TA) - terms of reference TF TA will address the tyres abrasion performance by determining a standardized measurement method which will allow for the quantification of the microplastic emissions in the environment. At the same time, the TF TA will investigate the correlation between abrasion rate and durability and consider the inclusion of both abrasion rate and durability
GRBP-75-43/Rev.1 | GRBP: Draft list of main decisions from the 75th (February 2022) session
GRBP-74-18 | (DETA): Proposal to improve the use of the Unique Identifier (UI)
WP.29/2021/148 | Proposal for a Framework Document on Vehicle Whole-Life Compliance Proposal submitted by the Co-Chairs of the Informal Working Group on Periodical Technical Inspections.
12. Provisional agenda for the next session