100. GRVA resume consideration of a proposal for amendments to UN Regulation No. 13, tabled by the representative of United Kingdom of Great Britain and Northern Ireland. He explained that the proposal (ECE/TRANS/WP.29/GRVA/2023/24) was drafted following discussions at a recent session of the Working Party on the Transport of Dangerous Goods, with the aim to foster uniform application of the regulation. GRVA agreed with the clarifications proposed. GRVA requested the secretariat to submit the proposal as draft Supplement 21 to the 11 series of amendments, Supplement 3 to the 12 series of amendments and Supplement 1 to the 13 series of amendments to UN Regulation No. 13 to WP.29 and AC.1 for consideration and vote at their March 2024 sessions.