15-17 Sep 2021 | Web conference
Download: GRBP/2021/8 from UNECE: .pdf format .docx format
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7. (e) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

GRBP may wish to consider a proposal which was tabled the experts from the European Tyre and Rim Technical Organisation (ETRTO).

GRBP/2021/17 | UN R117: Proposal for a Supplement to the 02 series of amendments
GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments
GRBP-74-31/Rev.1 | UN R117: Proposal for amendments to the 02 series of amendments
GRBP-74-42 | IWG WGWT: Proposal for revised Terms of Reference
GRBP-74-41 | IWG WGWT: Status report
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments

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/2021/12 | UN R117: Proposal for amendments
GRBP-74-33/Rev.1 | UN R117: Proposal for amendments
GRBP-74-42 | IWG WGWT: Proposal for revised Terms of Reference
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-74-41 | IWG WGWT: Status report
Other documents
GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference