The Air Resources Board’s (ARB) long-term objective is to transform the on- and offroad mobile source fleet into one utilizing zero- and near-zero-emission technologies to meet established air quality and climate change goals. The purpose of the Fuel Cell Electric Vehicle (FCEV) technology assessment is to take a comprehensive look at the current status of and the five to ten year outlook for FCEV technology in the mediumduty (8,501 to 14,000 pounds (lbs.) Gross Vehicle Weight Rating (GVWR)) and heavyduty (14,001 lbs. and above GVWR) truck and bus market.