(Documents that are finalized will be on the UN website; discussion documents are sent only to the principals participating in the meetings.)

31. New meetings of HDDF TF are now scheduled in Brussels (Brey Building) for 10 October (plenary + calculation formulae); 14 November (plenary + natural gas specific);14 December; SEE OTHER MEETINGS.

32. Two new annexes are being created: in R.49 rev 6 (Euro VI); and Annex 11 in R.49 rev 5 (Euro V and EEV)

33. Three types of systems have been defined, each with two subcategories A and B. These are based on the gas energy ratio (GER) specific to the engines. (But for Type 3 there is only one type, B., with a system running less than 10% on natural gas).

34. Engine markings were defined: for CNG use (as now) H,L,HL (designating for ‘high’ or ‘low’ btu methane; for LNG, ‘M’ (methane); and for LPG use ‘Q’.

35. Engine family concept discussed for compression ignition systems. In case of LPG engines a HDDF Type 2B might be allowed to be included into a type 3B family provided it complies with the Type 3B requirements

36. Installation requirements would have to be satisfied to be approved.

37. Miscellaneous items: NTE lab test must be performed; Durability specifically noted to HDDF; CO2 and FC will have to be reported in both modes; At this stage Annex 15 will not be applicable to small vehicles. Annex 15 will become applicable to those vehicles only when R101 considers D-F engines.

38. Proposal for GFV decision: Non HDDF specific items have been identified, such as: ETC/WHTC correlation for HC for NG engines, for which data is needed; PNwhtc (PI) Commercial Vehicle Data (CVD) requested; LNG ‘blow off’ and the green house gas effects; and introduction of LNG into R49 (single fuel type-approval).

39. Two options for GFV decision: Items in line 38 (above) can be dealt with in a new dedicated task force or the HDDF-TF could deal with these issues in meetings dedicated to addressing these issues. Mr. Renaudin suggested that the HDDF-TF can dedicate specific time to address the miscellaneous issues with the appropriate expertise to provide answers and/or solutions.

40. There was a discussion about LNG ‘blow-off’ and its effects on both safety and the environmental impact of releasing methane into the atmosphere. The group finally agreed that the various technical solutions will have to be dealt with very specifically for both safety and environmental aspects. Relatively strict limits and a regulatory approach ultimately will have to be brought back to the contracting parties at some point that address these concerns in regulatory language. This will have to be based on quantifiable evidence about ‘blow-off’ (time; methane quantities released; etc.) The two co-secretariats of the LNG Task Force (Mr. Del Alamo and Mr. Seisler) will bring the concerns back to the chairman and members of the LNG Task Force.

41. This concern will be dealt with on 14th November in the afternoon.