12. The expert from ETRTO presented background information on a set of proposals clarifying definitions and making editorial changes in several UN Regulations on tyres (GRBP-81-13-Rev.1). For UN Regulation No. 30, ETRTO tabled draft amendments in ECE/TRANS/WP.29/GRBP/2025/9. GRBP adopted this proposal, as amended by GRBP-81-05-Rev.1 and subject to correcting the new paragraph number to 2.25.3.4.1. and requested the secretariat to submit it for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft Supplement 27 to the 02 series of amendments to UN Regulation No. 30.

15. The expert from ETRTO submitted editorial corrections and clarifications to the new 01 series of amendments to UN Regulations Nos. 108 and 109 (ECE/TRANS/WP.29/GRBP/2025/15 and ECE/TRANS/WP.29/GRBP/2025/16). GRBP adopted these proposals, as amended GRBP-81-11-Rev.1 and GRBP-81-12-Rev.1., and requested the secretariat to submit them for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as respectively draft Supplement 1 to the 01 series of amendments to UN Regulation No. 108 and draft Supplement 1 to the 01 series of amendments to UN Regulation No. 109. For draft Supplement 1 to the 01 series of amendments to UN Regulation No. 108, GRBP recalled that the pending correction in ECE/TRANS/WP.29/GRBP/2024/24 should be added.