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UN R124: Proposal for a Supplement

Document GRBP/2024/16

22 November 2023

79th GRBP session (6-9 Feb)

Proposal to clarify the text:

Term “construction materials”
interpretation of paras. 2.2.4. and 2.2.8.
supplement technical description of the wheel with information describing production quality control
option for additional consumer-oriented marking
clarify Annex 4 and exclude aluminum-alloy and magnesium-alloy wheels under test (b)
clarify Annex 6 with regard to possible defects caused by the production process and not affecting the appearance of cracks during testing
recommend under Annex 6 to identify cracks occurred as a result of the test by using penetrating paints
clarify Annexes 7 and 8 with regard to air leakage.

Submitted by Russia

Status: Superseded

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Previous Documents, Discussions, and Outcomes

80th GRBP session (17-20 Sep)

6. (d) | UN Regulation No. 124 (Replacement Wheels for Passenger Cars)

30. The expert from the Russian Federation introduced a revised proposal that clarified certain provisions (ECE/TRANS/WP.29/GRBP/2024/19). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2025 sessions of WP.29 and AC.1 as draft Supplement 4 to the 00 series of amendments to UN Regulation No. 124. During the adoption, the expert from the Netherlands reserved his position.

79th GRBP session (6-9 Feb)

7. (e) | UN Regulation No. 124 (Replacement wheels for passenger cars)

27. The expert from the Russian Federation proposed clarifying certain provisions (ECE/TRANS/WP.29/GRBP/2024/16). The proposal received comments from the experts of France, Germany, Netherlands and ETRTO (GRBP-79-20). In reply, the expert from the Russian Federation tabled a revised proposal (GRBP-79-32). The expert from Germany made a study reservation on GRBP-79-32. Finally, GRBP agreed to revert to this issue at the next session.

78th GRBP session (30 Aug-1 Sep 2023)

7. (d) | UN Regulation No. 124 (Replacement wheels for passenger cars)

26. The expert from the Russian Federation tabled amendments that clarify certain provisions (ECE/TRANS/WP.29/GRBP/2023/20, GRBP-78-03). The experts from Germany and ETRTO posed several questions and, together with the experts from France and the Netherlands, stated that they would send written comments to the expert of the Russian Federation. GRBP agreed to keep this issue on the agenda of the next session.

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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