18. The Chair of the informal group on Gaseous-Fuelled Vehicles (GFV) presented ECE/TRANS/WP.29/GRPE/2012/6/Rev.1, proposing to amend UN Regulation No. 83 regarding the simultaneous use of gas and petrol under certain conditions on some bi-fuel vehicles equipped with petrol direct injection systems. He also introduced GRPE-64-21 (updating GRPE-64-06), proposing to amend ECE/TRANS/WP.29/GRPE/2012/6/Rev.1 for issues concerning the G₂₀ and G₂₅ reference fuels. Responding to a question from the expert from OICA, the GFV Chair clarified that the proposal assured the necessary accuracy needed for type approval. Similar proposals concerned UN Regulation No. 115 (para. 63.).

19. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2012/11/Rev.1, proposing to align UN Regulation No. 83 with the Regulation (EU) No. 566/2011. He explained that the initial transposition of the Euro 5 requirements could not take these amendments into account because they have been published later. He also underlined that clarity has been introduced to the definition of cold start, in response to the concerns raised by the expert from Poland at the sixty-third GRPE session.

20. The expert from the UK requested to revise the amendment proposed for paragraph 5.2.3., Table A so that the text “particulate number” is replaced by “particle number”.

21. The secretariat introduced GRPE-64-15, containing a proposal to delete the references made to Annex 4 in Supplements 1 and 2 to the 06 series of amendments (Revision 4) to UN Regulation No. 83, since they include changes to Annex 4, while Annex 4 is missing from the text of the Revision 4 of the UN Regulation.

22. GRPE adopted ECE/TRANS/WP.29/GRPE/2012/6/Rev.1, as amended by GRPE-64-21, as well as ECE/TRANS/WP.29/GRPE/2012/11/Rev.1, incorporating the amendments proposed in GRPE-64-15 and correcting it as indicated below:
Paragraph 5.2.3., Table A, replace “particulate number” by “particle number”.
GRPE requested the secretariat to submit these two proposals to WP.29 and AC.1 for consideration at their November 2012 sessions, as Supplement 3 to the 06 series of amendments to the UN Regulation No. 83.

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.