17. The expert from France proposed aligning the test procedures in UN Regulation No. 109 with those in UN Regulation No. 117 (ECE/TRANS/WP.29/GRBP/2023/4). Subject to replacement of “Annex 7” with “Annex 10” in the introductory line, GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the June 2023 sessions of WP.29 and AC.1 as draft Supplement 12 to UN Regulation No. 109.

18. The expert from ETRTO introduced corrections (ECE/TRANS/WP.29/GRBP/2023/10 and GRBP-77-22). GRBP adopted the corrections, as laid down in GRBP-77-22, and requested the secretariat to submit them for consideration and vote at the June 2023 sessions of WP.29 and AC.1 as part of draft Supplement 12 to UN Regulation No. 109.

19. The group of experts on the split of the UN Regulations on retreaded tyres reported on their activities (GRBP-77-16) and proposed drafting a new UN Regulation on approval of retreaded tyres with regard to their snow performance, together with amending UN Regulations Nos. 108 and 109. GRBP agreed to include this work in its list of priorities.