1. The Working Party on General Safety Provisions (GRSG) held its 113th session from 10 to 13 October 2017 in Geneva. The meeting was chaired by Mr. A. Erario (Italy). 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, ECE/TRANS/WP.29/690/Amend.1 and Amend.2): Belgium, Canada, China, Czechia, Finland, France, Germany, Hungary, India, Italy, Japan, Kuwait, Latvia, Luxembourg, Netherlands, Norway, Poland, Republic of Korea, Romania, Russian Federation, Serbia, Spain, Sweden, Switzerland, Turkey, United Kingdom of Great Britain and Northern Ireland (United Kingdom) and United States of America. An expert from the European Commission (EC) also participated. Experts from the following non-governmental organizations participated: European Association of Automotive Suppliers (CLEPA), European Liquefied Petroleum Gas Association (AEGPL), International Motorcycle Manufacturers Association (IMMA), International Organization for Standardization (ISO), International Organization of Motor Vehicle Manufacturers (OICA) and International Association for Natural Gas Vehicles (NGV Global). Upon the special invitation of the Chair, experts from the International Association for Public Transport (UITP) and the International Association of the Body and Trailer Building Industry (CLCCR) participated.