E. Donald Elliott has been a professor at Yale Law School since 1981 and now also teaches at the Scalia Law School. He teaches and writes in a wide-variety of subjects, including constitutional law, civil procedure, administrative law, and energy and environmental law. He has also practiced law in Washington, D.C. for over 30 years with several leading law firms. He is an elected member of the American Law Institute, the American College of Environmental Lawyers, and a senior fellow of the Administrative Conference of the United States. He served as general counsel of the EPA, 1989-1991.