GRBP may wish to consider a proposal which was tabled the experts from the European Tyre and Rim Technical Organisation (ETRTO).
| GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments | |
| GRBP-74-31/Rev.1 | UN R117: Proposal for amendments to the 02 series of amendments | |
| GRBP-74-33/Rev.1 | UN R117: Proposal for amendments | |
| GRBP-74-33/Rev.1 | UN R117: Proposal for amendments | |
| GRBP-74-41 | IWG WGWT: Status report | |
| GRBP-74-42 | IWG WGWT: Proposal for revised Terms of Reference | |
| GRBP/2021/17 | UN R117: Proposal for a Supplement to the 02 series of amendments |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference |
GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in a Worn State (IWG WGWT) and will consider amendment proposals that were prepared by IWG WGWT with the aim to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.
| GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments | |
| GRBP-74-31/Rev.1 | UN R117: Proposal for amendments to the 02 series of amendments | |
| GRBP-74-33/Rev.1 | UN R117: Proposal for amendments | |
| GRBP-74-33/Rev.1 | UN R117: Proposal for amendments | |
| GRBP-74-41 | IWG WGWT: Status report | |
| GRBP-74-42 | IWG WGWT: Proposal for revised Terms of Reference | |
| GRBP/2021/12 | UN R117: Proposal for amendments |
| GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference |