63. The Chair of the informal group on Gaseous-Fuelled Vehicles (GFV) presented ECE/TRANS/WP.29/GRPE/2012/7/Rev.1, proposing to amend UN Regulation No. 115, regarding the simultaneous use of gas and petrol in gas mode under certain conditions on some bi-fuel vehicles equipped with petrol direct injection systems. He also introduced GRPE-64-21 (updating GRPE-64-06), concerning the use of G20 and G25 reference fuels and proposing to amend ECE/TRANS/WP.29/GRPE/2012/7/Rev.1. Similar proposals concerned UN Regulation No. 83 (para. 18).

64. GRPE adopted ECE/TRANS/WP.29/GRPE/2012/7/Rev.1, as amended by GRPE-64-21, and requested the secretariat to submit a consolidated text to WP.29 and AC.1 for consideration at their November 2012 sessions, as Supplement 5 to the UN Regulation No. 115.

Mr. Rijnders notes that in the UNECE website document 2012/7 was listed as pertaining to R.83. In fact this pertains to R.115. Mr. Seisler will contact Pierpaolo Cazzola (GRPE secretariat) to make the necessary change.

View on GRPE formal documents for R83 and R115 (highlight discussion at GFV-20 and anticipated at GRPE-64). With respect to informal documents on which the two formal ones are based, in line with comments received in GRPE-63rd and as agreed by the group in GFV-18th, only that concerning R 115 has been subject to a significant modification: new requirements for petrol use in the gas mode have been restricted to direct injection petrol engines.

GFV-21-02 aims at introducing a mass correction factor for CNG reference fuel G25 in both documents ECE/TRANS/WP.29/GRPE/2012/6 and /7. A minor correction for the formulae used in both documents and for both gaseous fuels is highlighted: the proposed requirements make reference to gas ratios in percentage while the formulae generate decimal numbers. Attendees agree to correct the formulae making them consistent with the related requirements. Mr. Piccolo commits to drafting a proposal to be circulated to the group for final approval before tomorrow.

Proposal unanimously adopted.