8. The expert from OICA also proposed clarifications and corrections for UN Regulation No. 51 (ECE/TRANS/WP.29/GRBP/2025/20 as amended by GRBP-82-07, GRBP-82-22, GRBP-82-23). GRBP adopted these proposals as part of draft Supplement 11 to the 03 series of amendments to UN Regulation No. 51 and agreed to freeze it for the time being, awaiting other amendment proposals before transmission to WP.29 and AC.1.

7. The IWG RD-ASEP Subgroup on UN Regulations Nos. 51 and 138 reported on their activities (GRBP-83-08-Rev.1) and introduced GRBP-83-09-Rev.1 proposing to amend ECE/TRANS/WP.29/GRBP/2026/4. The representative of France acknowledged the good progress achieved, for example by requiring drivers to activate the device; he wondered about how to deal with artificial sound for speed > 80km/h, and its potential inclusion in the guidance document being prepared. He requested to be included in any task to update the provisions in the future. The representative of Germany confirmed a new version of GRB-68-03 was planned, providing guidance for speeds not covered by the current text.

8. GRBP adopted ECE/TRANS/WP.29/GRBP/2026/4 as amended by GRBP-83-09-Rev.1.

9. Given the adoption of ECE/TRANS/WP.29/GRBP/2026/4 as amended by GRBP-83-09-Rev1, the representative of OICA withdrew ECE/TRANS/WP.29/GRBP/2026/14 from consideration by GRBP.

10. The representative of OICA introduced ECE/TRANS/WP.29/GRBP/2026/13. GRBP adopted ECE/TRANS/WP.29/GRBP/2026/13. The representative of ISO introduced ECE/TRANS/WP.29/GRBP/2026/5 complimented by GRBP-83-28. GRBP adopted ECE/TRANS/WP.29/GRBP/2026/5 and GRBP-83-28.

11. The representative of OICA introduced GRBP-83-29, showing the status of amendments to UN Regulation No. 51. He later introduced GRBP-83-41, consolidating all adopted changes (see paras 6. to 9. above) to the 03 Series of Amendments to UN Regulation No. 51. GRBP adopted GRBP-83-41 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 11 to the 03 Series of Amendments to UN Regulation No. 51.