GAR | GRBP/2026/17

GRBP/2026/17

UN R117: Proposal for a Supplement 5 to the 04 series of amendments

Source(s)

ETRTO

Date

18 Jun 2026

Status

GR approved as amended

Subject

UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

Meeting(s)

GRBP | Session 84 | 2-4 Sep

Agenda item 5. (a) UN Regulation No. 117 (Tyre Rolling Resistance, Rolling Noise and Wet Grip)

Proposal to amend para. 2.18. to change the reference year from 24 to 26 for standard F2493, add new para. 2.21. defining “road legal race tyre,” add new para. 4.2.8. requiring the inscription “RLR” for road legal race tyres, insert new footnote 12 on marking height, renumber current footnote 12 to footnote 13 and amend its text, amend para. 5.4.1. to reference footnote 13, add new para. 6.9. establishing requirements for road legal race tyre classification, add new item 4.3. to Annex 1, amend para. 6.7. to change “classified” to “categorized,” amend Annex 3 para. 4.2.2. tables to change K1 unit from C to dB(A), amend Annex 3 Appendix 1 Part 2 item 3.1. to update ISO10844 reference from 2014 to 2021, and amend Annex 7 Appendix 3 Item 5 table to enable reporting of SRTT weighted average for each candidate.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRBP | Session 84 | 2-4 Sep

18. The representative of ETRTO introduced ECE/TRANS/WP.29/GRBP/2026/16 and ECE/TRANS/WP.29/GRBP/2026/17, as amended by GRBP-84-19 and GRBP-84-20 respectively. The representative of the UK asked additional information about the use of “no performance change” in the justification associated with the updated reference to ASTM standard. The representative of ETRTO clarified that ETRTO was not overseeing ASTM standards, and that the performance has not been changed between the two version of the ASTM standards. The representative of France asked if similar proposals could be expected for other tyre legislation apart from UN Regulation No. 117. The representative of ETRTO confirmed other tyre legislation could also be concerned by similar updates in the future.

21. GRBP adopted ECE/TRANS/WP.29/GRBP/2026/17, as amended by GRBP-84-20, as well as GRBP-83-24-Rev.1, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their March 2027 sessions as draft new Supplement to 04 series of amendments to UN Regulation No. 117.