1. The World Forum for Harmonization of Vehicle Regulations (WP.29) held its 177th session from 12 to 15 March 2019, chaired by Mr. B. Kisulenko (Russian Federation). The following countries were represented, following Rule 1 of the Rules of Procedure of WP.29 (ECE/TRANS/WP.29/690/Rev.1): Australia, Austria, Belgium, Belarus, Bosnia and Herzegovina, Canada, China, Croatia, Czechia, Finland, France, Georgia, Germany, Hungary, India, Italy, Japan, Jordan, Kazakhstan, Latvia, Luxembourg, Malaysia, Netherlands, Norway, Poland, Republic of Korea, Republic of Moldova, Romania, Russian Federation, San Marino, South Africa, Spain, Sweden, Switzerland, Turkey, United Kingdom of Great Britain and Northern Ireland, and the United States of America. 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), European Association of Automotive Suppliers (CLEPA/MEMA/JAPIA) , Consumers International (CI), European Tyre and Rim Technical Organization (ETRTO), Federation Internationale des Grossistes, Importateurs et Exportateurs en Fournitures Automobiles (FIGIEFA), International Automotive Lighting and Light Signalling Expert Group (GTB), International Motor Vehicle Inspection Committee (CITA), International Motorcycle Manufacturers Association (IMMA), International Organization of Motor Vehicle Manufacturers (OICA), Recreation Vehicle Industry Association (RVIA) and SAE International. Other non-governmental organizations were represented following Rule 1(d): American Automotive Policy Council (AAPC), Fédération Internationale de l’Automobile (FIA) and World Bicycle Industry Association (WBIA).