Rocket Propulsion Laboratory; member of the research staff, Princeton University; member, CARB; and vice-chair for graduate studies of the Department of Mechanical Engineering and chair of the Energy and Resources Group at UCB. He also served as president of the Combustion Institute. He conducts research in engine combustion, pollutant formation and control, alternative fuels, and regulatory policy. Dr. Sawyer has served on numerous National Research Council committees, including the Committee for the Evaluation of the Congestion Mitigation and Air Quality Improvement Program, the Committee to Review EPA’s Mobile Source Emissions Factor (MOBILE) Model, and the Committee on Adiabatic Diesel Technology. He holds a BS and an MS in mechanical engineering from Stanford University and an MA in aeronautical engineering and a PhD in aerospace science from Princeton University.