GAR | GRBP-71-26

UN R117: Justification for document GRBP/2019/14

Document GRBP-71-26

29 January 2020

71st GRBP session (28-31 Jan 2020)

Supporting information regarding the proposal for the type approval of special-use tyres designed for severe snow conditions.

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Previous Documents, Discussions, and Outcomes

76th GRBP session (5-7 Sep 2022)

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

24. The experts from ETRTO tabled proposals which aimed to introduce provisions for type approval of special use tyres that fulfil the requirements for snow performance (ECE/TRANS/WP.29/GRBP/2022/18 and ECE/TRANS/WP.29/GRBP/2022/19).

25. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/19, as amended by GRBP-76-21, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of draft Supplement 15 to the 02 series of amendments to UN Regulation No. 117.

26. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/18 and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of draft Supplement 1 to the 03 series of amendments to UN Regulation No. 117.

71st GRBP session (28-31 Jan 2020)

70th GRBP session (11-13 Sep 2019)

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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