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IWG WGWT: Proposal for revised Terms of Reference

Document GRBP-74-42

15 September 2021

74th GRBP session (15-17 Sep 2021)

IWG to propose amendments to UN R117

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Previous Documents, Discussions, and Outcomes

74th GRBP session (15-17 Sep 2021)

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

22. The experts from IWG for Wet Grip on Worn Tyres (WGWT) reported on their progress (GRBP-74-41) and presented updated Terms of Reference of IWG WGWT (GRBP-74-42). GRBP adopted the revised Terms of Reference, as contained in Annex V of the session report.

Relates to UN R117 |

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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