1. The World Forum for Harmonization of Vehicle Regulations (WP.29) held its 198th session from 10 to 13 March 2026, chaired by Mr. A. Erario (Italy) The following countries were represented, following Rule 1 of the Rules of Procedure of WP.29 (ECE/TRANS/WP.29/690/Rev.2): Albania, Armenia, Austria, Belarus, Belgium, Bulgaria, Canada, China, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Iceland, India, Ireland, Israel, Italy, Japan, Kenya, Kazakhstan, Kyrgyzstan, Latvia, Lichtenstein, Lithuania, Luxembourg, Malta, Monte-Negro, Netherlands (Kingdom of the), Nigeria, North Macedonia, Norway, Poland, Portugal, Republic of Korea, Republic of Moldova, Romania, Russian Federation, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tunisia, Türkiye, Ukraine, United Kingdom of Great Britain and Northern Ireland, United States of America and Zimbabwe Representatives of the European Union participated. The following international organization was represented: International Telecommunication Union (ITU). The following non-governmental organizations were also represented: Association for Emissions Control by Catalyst (AECC), Consumers International (CI), European Association of Automotive Suppliers (CLEPA/MEMA/JAPIA) , International Automobile Federation (FIA), International Council on Environmental Economics and Development Union, International Motor Vehicle Inspection Committee (CITA), Fédération International de l’Automobile (FIA), The Institute of Electrical and Electronics Engineers, Inc. (IEEE), International Automotive Lighting and Light Signalling Expert Group (GTB), International Motorcycle Manufacturers Association (IMMA), International Organization of Motor Vehicle Manufacturers (OICA), International Road Transport Union (IRU), Motor and Equipment Manufacturers Association (MEMA), European Tyre and Rim Technical Association (ETRTO) and SAE International. Other non-governmental organizations were represented following Rule 1(d): American Automotive Policy Council (AAPC),, E-Mobility Europe (EME).and Recreation Vehicle Industry Association (RVIA). Other non-governmental organizations, private sector entities, independent experts and observers were represented: Some 150 participants attended the session in person.