1. The Working Party on General Safety Provisions (GRSG) held its 112th session from 24 to 28 April 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, Israel, Italy, Japan, Kuwait, Latvia, Luxembourg, Netherlands, Norway, Poland, Republic of Korea, Romania, Russian Federation, South Africa, 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 Road Transport Union (IRU), International Organization of Motor Vehicle Manufacturers (OICA), International Organization for Standardization (ISO) and International Association for Natural Gas Vehicles (NGV Global).