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| Document title | UN R117: Proposal for a Supplement 4 to the 04 Series of amendments | ||||||||||
| Date | 2 Sep 2025 | Addresses a real-life situation that is not considered by current ice grip test conditions: the wet ice (or black ice) conditions. | |||||||||
| Source(s) | ETRTO | ||||||||||
| Status | |||||||||||
| Rulemaking area(s) | |||||||||||
| Meeting(s) | |||||||||||
| Related documents | |||||||||||
| GRBP/2025/26 | UN R117: Proposal for Supplement 4 to the 04 series of amendments (Formal GR review) | ||||||||||
| Downloads: | UNECE server | .pdf format | .pptx format | GAR server | .pdf format | .pptx format | |||||
| Excerpts from session reports related to this document | |||||||||||
| GRBP | Session 82 | 3-5 Sep 2025 |
11. The expert from Japan tabled an amendment proposal on the test conditions for ice grip tyres (ECE/TRANS/WP.29/GRBP/2025/26). The expert from ETRTO pointed out that the proposal concerned a real-life situation (wet ice) that was not considered by the current ice grip test conditions in UN Regulation No.117 and proposed developing a new Annex to this end (GRBP-82-26). He also mentioned that this topic was being considered by one of the ISO Working Groups. Awaiting the outcome of the ISO consideration, GRBP agreed to revert to the issue at the next session. |
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