Margo Oge is the Former Director of the Office of Transportation and Air Quality at the United States Environmental Protection Agency, having served with the EPA for more than 30 years. During her 18 year tenure as Director of the EPA’s Office of Transportation and Air Quality, Oge was the chief architect of the most important achievements in the history of air pollution control in the U.S. transportation sector. These included programs that reduced emissions from automobiles, and gasoline and diesel fueled trucks, buses, and off-road vehicles (including locomotives and marine vessels) by up to 99 percent. Most recently, Oge led the EPA’s development of the first-ever national greenhouse gas emission standards for cars and heavy-duty trucks, helped establish the Renewable Fuels Standard, and was instrumental in establishing the United Nations process on global harmonization of transportation emissions standards worldwide. She is currently a member of the National Academies of Science Board on Energy and Environment and is the Vice Chairman of the Board for Delta Wing Technologies.