5. Recalling the discussion at the previous GRSG session, the expert from Sweden introduced a revised proposal for the introduction of automatic fire suppression systems in the engine and/or heater compartment of buses and coaches (ECE/TRANS/WP.29/GRSG/2014/6/Rev.1). The expert from OICA raised concerns and presented GRSG-108-45 proposing further improvements to the revised text. The expert from Hungary introduced GRSG-108-10 on statistical information about fires in different categories and classes of buses and coaches.

6. Following a controversial discussion on the scope of the new test requirement for automatic fire suppression systems, GRSG agreed to go forward with the following compromise stages: (i) to agree during the current session on the mandatory installation of such systems on vehicles of Class III (as a Supplement to the 06 series of amendments) taking into account the transitional provisions (i.e. June 2018 for new types of vehicles and June 2019 for all existing types) as reflected in GRSG-108-51 and (ii) to reach a consensus at the forthcoming session of GRSG on the mandatory installation of automatic fire suppression systems on vehicles of Classes I and II. Thus, GRSG already committed to the following dates for the transitional provisions of stage (ii) mentioned above: at the latest 2020 for new types and 2022 for all types.

7. Finally, GRSG adopted ECE/TRANS/WP.29/GRSG/2014/6/Rev.1, as amended as reproduced in GRSG-108-51, and requested the secretariat to submit the proposal to WP.29 and AC.1 for consideration at their November 2015 sessions, as draft Supplement 4 to the 06 series of amendments to UN Regulation No. 107.