AC Transit in Oakland, CA has a fleet of FCEV buses, the first series has been retired but they have a second generation using fuel cells from United Technologies on VanHool chassis, and a new “third” generation bus built by New Flyer with Ballard fuel cells and Siemens electric drives. They are collecting data and finding out the reliability of these buses is nearing diesel and actually better than their fleet of hybrid buses using BAE Systems propulsion with a Cummins 7-liter class engine(think Dodge Ram).

I think Toyota is testing out with the Port of LA/Long Beach FCEV trucks. Believe they are Peterbilt gliders with Toyota FC stacks from a Mirai.