This is a revised version of the proposal by the Gaseous Fueled Vehicles (GFV) informal group to redefine the class of bi-fuel vehicles under UN R115 in order to permit the simultaneous use of gas and petrol while in gas mode.

Progress report of the informal group working on heavy-duty dual-fuel vehicle provisions in UN Regulations 49, 85, and 115.

Status report of the HDDF task force for presentation to the Working Party on Pollution and Energy during its 63rd session.

GFV informal group draft of proposed amendments aimed at redefining the class of bi-fuel vehicles to permit the
simultaneous use of gas and petrol in gas mode. This draft was submitted to the Working Party on Pollution and Energy for its 63rd session as document GRPE-63-06.

Report from the January 17, 2012 session of the Gaseous-Fuelled Vehicles Informal Group.

Draft agenda for the joint meeting of the Informal Group on Gaseous Fuel Vehicles
and its Heavy Duty Dual-Fuel Task Force.

Comments from Poland on the Gaseous Fueled Vehicles (GFV) informal group proposal to redefine the class of bi-fuel vehicles under UN R115 in order to permit the simultaneous use of gas and petrol while in gas mode.

Proposal from the GFV informal group concerning definitions for mono-fuel and bi-fuel vehicles, for engine start-up in petrol mode, and provisions for petrol direct-injection engines under UN R115.

Revised submission by the Chair of the informal group on Gaseous Fuelled Vehicles (GFV) to redefine the class of bi-fuel vehicles to permit the simultaneous use of gas and petrol in gas mode in UN Regulation No. 115. This document succeeds Informal document GRPE-63-06-Rev.1 and replaces GRPE/2012/7.

Submission prepared by the Chair of the informal group on Gaseous Fuelled Vehicles (GFV) to correct a measurement error contained in documents GRPE/2012/6 (concerning UN R83) and GRPE/2012/7 (concerning UN R115) when weighing method and G25 reference fuel are used.

Copy of the GRPE submission prepared by the GFV Chair of the informal group to correct a measurement error contained in documents GRPE/2012/6 (concerning UN R83) and GRPE/2012/7 (concerning UN R115) when weighing method and G25 reference fuel are used.

Documents GRPE/2012/6 and 7 introduce the calculation of NG/biomethane energy ratio during a type I cycle by weighing the NG/biomethane mass consumed. The formulas are affected by an error when G25 reference fuel is used. This proposal precribes a modification to the previous formulas.

Submission prepared by the Chair of the informal group on Gaseous Fuelled Vehicles (GFV) to correct measurement errors contained in documents GRPE/2012/6 (concerning UN R83) and GRPE/2012/7 (concerning UN R115) when weighing method and G20/G25 reference fuels are used.

Presentation on the status of GFV activities, including for heavy-duty dual-fuel vehicles, bi-fuel gas vehicles, liquefied natural gas (LNG) vehicles, and support to the European Commission concerning THC/CH4 (methane).

GRPE-adopted submission by the informal group on Gaseous Fuelled Vehicles (GFV) to redefine the class of bi-fuel vehicles to permit the simultaneous use of gas and petrol in gas mode in UN Regulation No. 115.

Report of the 22nd informal group on gaseous-fueled vehicles meeting.