| September 14, 2019 Zero-Emission Bus Evaluation Results: Orange County Transportation Authority Fuel Cell Electric Bus
| September 14, 2019 Best Practices in Hydrogen Fueling and Maintenance Facilities for Transit Agencies
| September 14, 2019 National Fuel Cell Bus Program: Proterra Fuel Cell Hybrid Bus Report, Columbia Demonstration (Report 0003)
| September 14, 2019 Analysis of Electric Drive Technologies for Transit Applications: Battery-Electric, Hybrid-Electric, and Fuel Cells