GAR | GRB-69-10

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

Regulation:	GTR No. 13 \| Hydrogen and Fuel Cell Vehicle Safety
Document:	Amendment 1 \| Corrigendum 1

UN R117: Comments on the proposal for worn-tyre provisions (GRB/2019/6)

Document GRB-69-10

22 January 2019

69th GRB session (23-25 Jan 2019)

Submitted by ETRTO

69th GRB session (23-25 Jan 2019)

7. (c) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

21. The expert of France proposed a wet adhesion requirement for C1 tyres in a worn state (ECE/TRANS/WP.29/GRB/2019/6 and GRB-69-08). The proposal received comments from ETRTO (GRB-69-10). GRB also noted a recent study on used tyres (GRB-69-09). GRB was of the view that this topic should be pursued in the framework of a new IWG and adopted its Terms of Reference (GRB-69-23), as reproduced in Annex V to the session report. Various experts expressed their willingness to contribute to the activities of the newly established IWG. The experts from France and the European Commission volunteered to act as Chair and Co-Chair, respectively, while ETRTO agreed to provide secretariat support.

Reference Number:	WP.29/2025/2
Meeting Session(s):	195th WP.29 session (3-7 Mar 2025)
Document date:	24 Dec 24
Document status:	Formal WP.29 review
Regarding:	Communications/Connectivity

Reference Number:	EVE-79-05
Meeting Session(s):	79th EVE session (17 Dec)
Document date:	23 Dec 24
Regarding:	GTR No. 21 EV Power Determination \| GTR No. 22 EV Battery Durability \| HD EV Battery Durability

Reference Number:	VIAQ-30-09
Meeting Session(s):	30th VIAQ session (11 Oct)
Document date:	23 Dec 24
Regarding:	MR 3: VIAQ

Reference Number:	WT-64-03
Meeting Session(s):	64th WT session (16 Dec)
Document date:	22 Dec 24
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

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