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.

Progress report of the LNG Task Force created to develop technical specifications for LNG (Liquefied Natural Gas) cryogenic components to be installed on-board road vehicles.

Consolidated proposal from the GFV Task Force on Heavy-duty Dual-fuel vehicles for an amendment to Regulation No. 49 in view of type-approving such vehicles.