1. The Working Party on Noise (GRB) held its sixty-fourth session from 5 to 7 September 2016 in Geneva. The meeting was chaired by Mr. S. Ficheux (France). Experts from the following countries participated in the work following Rule 1(a) of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690, Amend. 1 and Amend. 2): Belgium; China; France; Germany; Hungary; India; Italy; Japan; Netherlands; Norway; Poland; Republic of Korea; Russian Federation; Spain; Sweden; Switzerland; Turkey; United Kingdom of Great Britain and Northern Ireland and the United States of America. Experts from the European Commission (EC) participated. Experts from the following non-governmental organizations also participated: European Association of Automotive Suppliers (CLEPA); European Tyre and Rim Technical Organisation (ETRTO); International Council of Academies of Engineering and Technological Sciences, Inc. (CAETS); International Motorcycle Manufacturers Association (IMMA); International Motorcycling Federation (FIM); International Organization for Standardization (ISO); International Organization of Motor Vehicle Manufacturers (OICA) and World Blind Union (WBU).