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.