31. The representative of ETRTO introduced ECE/TRANS/WP.29/GRBP/2026/11, as amended by GRBP-83-17, as shortened version, and GRBP-83-18, as expanded version.
32. Following clarifications on transitional provisions raised the representative of the UK, GRBP adopted GRBP-83-18, entrusted the secretariat to make it as short as possible, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at the June 2026 sessions as draft Supplement 2 to UN Regulation No. 172.