6 days ago · 24 - 28 March 2025. Joint Meeting of the RID Committee of Experts and the Working Party on the Transport of Dangerous Goods (WP.15/AC.1) Universal Postal Union (UPU), Bern. Switzerland. 05 - 09 May 2025. Working Party on the Transport of Dangerous Goods (WP.15) (117th session) Palais des Nations, Geneva. Switzerland. 30 June - 04 July 2025.