29. The Chair of the informal group on Gaseous-Fuelled Vehicles (GFV) underlined the urgent need to update the provisions of Regulation No. 115 (GRPE-61-15) with the Euro 5 emission requirements recently inserted into Regulation No. 83. GRPE adopted GRPE-61-15, as reproduced in Annex III to this report, and requested the secretariat to submit it to WP.29 and AC.1, for consideration at their sessions in June 2011, as Corrigendum 1 to Supplement 4 to Regulation No. 115.

30. The Chair of the informal group on GFV reported on the work progress made by the group at its recent meetings, held in Brussels on 8 November 2010 and in Geneva on 11 January 2011. He raised his concerns about bi-fuel vehicles with petrol direct injection (PDI) engines when the injectors need to inject a considerable amount of petrol even if the gas mode is selected, due to prevent overheating. He announced the intention of the informal group to prepare a concrete proposal on how to go forward.

31. The expert from OICA chairing the task force on heavy duty dual fuel (HDDF) gave a brief status report (GRPE-61-25) on the time-plan and the road map for adapting the relevant Regulations to the new Euro VI emission requirements. He proposed a way to address methane (CH4) and total hydrocarbon (THC) for HDDF vehicles equipped with a Type 2 engine. He also proposed a way to address HDDF engines fuelled with liquid natural gas (LNG). GRPE supported the time-plan and the roadmap and gave its consent to go forward with the proposed approach to address the emissions of HDDF engines.

32. GRPE agreed that the GFV group should also meet prior to the next session of GRPE in June 2011.