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| Document Title | Tyre category definitions and requirements for tyre use on roads under winter conditions | ||||||||
| Reference Number | GRRF-83-05 | ||||||||
| Date |
17 Jan 2017
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| Summary | Germany reviews problems with applying UN specifications for the marking of winter tyres, covering disparities in definitions and performance requirements across the tyre regulations (UN R30, R54, R75, R106, R108, R109 and R117). Therefore, Germany proposes that GRRF work to resolve these disparities and offers two possible solutions: 1) Introduce the definition of "Snow tyre for use in severe snow conditions” and the related performance and marking requirements established under UN R109 and R117 into UN R30, R54, R75, R108, and (possibly) R106; 2) Amending UN R117 to extend the scope of its snow performance criteria to additional tyre classes and categories, such as special tyres (POR, MPT), all terrain (AT) tyres, and retreaded tyres for passenger cars. | ||||||||
| Source(s) | Germany and BMDV | ||||||||
| Rulemaking Area(s) | UN R30 Pneumatic Tires, UN R54 CV Tires, UN R75 Motorcycle Tires, UN R106 Agricultural Tires, UN R109 CV Retreaded Tires, UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance, and UN R108 Retreaded Tires | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRRF-82-21 | Definitions in regulations dealing with tyres | ||||||||
| GRRF-78-04 | Definitions in Regulations under the responsibility of GRRF | ||||||||
| Downloads | |||||||||
| UNECE server | .pdf format | ||||||||
| Excerpts from session reports related to this document | |||||||||
| GRRF | Session 83 | 23-27 Jan 2017 |
47. The Chair of GRRF, recalling the purpose of GRRF-82-21 collecting the definitions in UN Regulations on tyres invited the expert from ETRTO to report on derived activities. The expert from ETRTO reported that he didn’t receive any feedback on this document. GRRF agreed to keep this document on the agenda of the next session. 48. The expert from Germany introduced GRRF-83-05 looking for guidance on the possibility to develop snow tyre provisions for all tyres and vehicles categories as it was already existing for snow tyres of category C1, C2 and C3 for vehicles categories M and N by amending all relevant Regulations or by amending the scope of Regulation No. 117. The expert from Japan and the Russian Federation volunteered to contribute to the work item proposed by Germany. GRRF requested to add an agenda item dedicated to snow tyres on the agenda. |
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