CAFEE Center for Alternative Fuels, Engines and Emissions CAFEE Center for Alternative Fuels, Engines & Emissions West Virginia University Final Report In-Use Emissions Testing of Light-Duty Diesel Vehicles in the United States Prepared by: Principal Investigator Dr. Gregory J. Thompson (Principal Investigator) Phone: (304) 293-3254 Email: gregory.thompson@mail.wvu.edu Co-Principal Investigators D