Jim Blubaugh has worked in the Office of Transportation and Air Quality within the U.S. Environmental Protection Agency for fifteen years. His background at the EPA is primarily in mobile source regulation development and has led the agency's efforts in a number of enforcement and compliance activities. Blubaugh has been instrumental in establishing the agency's innovative programs to reduce pollution from the existing fleet of heavy-duty vehicles and engines. Currently, he is the manager of EPA's National Clean Diesel Campaign.