| 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-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-09 | UN R51: ACEA tyre performance study report | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP/2021/22 | UN R51: Proposal for Supplement 7 to 03 series of amendments |
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) | |
| 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-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-09 | UN R51: ACEA tyre performance study report | |
| GRBP-74-09 | UN R51: ACEA tyre performance study report | |
| GRBP-74-09 | UN R51: ACEA tyre performance study report | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP/2021/22 | UN R51: Proposal for Supplement 7 to 03 series of amendments | |
| GRBP/2021/22 | UN R51: Proposal for Supplement 7 to 03 series of amendments |
GRBP will address proposals prepared by IWG MU that introduce measures to reduce variability.
| GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09) | |
| GRBP-74-09 | UN R51: ACEA tyre performance study report | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-20 | (Measurement Uncertainty): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-21 | (ASEP): IWG status report | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP-74-39 | Vehicle Sound: TF Status Report | |
| GRBP/2021/22 | UN R51: Proposal for Supplement 7 to 03 series of amendments |
Under this agenda item, GRBP may expect a report on the activities of the newly established taskforce on sound level limits (TF SL).
| GRBP-74-11 | IWG MU (Measurement Uncertainties): Reference document | |
| GRBP-74-22 | UN R51: Proposal for 04 series of amendments |