
The Program on Risk Regulation will focus on how law and policy deal with the central hazards of the 21st century. In the fall of 2008 he joined the faculty of Harvard Law School and began serving as the director of its Program on Risk Regulation: He teaches courses in constitutional law, administrative law, and environmental law, as well as the required first-year course "Elements of the Law", which is an introduction to legal reasoning, legal theory, and the interdisciplinary study of law, including law and economics. Sunstein was the Samuel Rubin Visiting Professor of Law at Columbia Law School in the fall of 1986 and a visiting professor at Harvard Law School in the spring 1987, winter 2005, and spring 2007 terms. Llewellyn Distinguished Service Professor of Jurisprudence in the Law School and Department of Political Science. The university honored him in 1993 with its "distinguished service" accolade, permanently changing his title to Karl N. Llewellyn Professor of Jurisprudence in the Law School and Department of Political Science. In 1985, Sunstein was made a full professor of both political science and law in 1988, he was named the Karl N. Sunstein worked in the Office of Legal Counsel in the Justice Department as an attorney-advisor (1980–1981) and then took a job as an assistant professor of law at the University of Chicago Law School (1981–1983), where he also became an assistant professor in the Department of Political Science (1983–1985). He served as a law clerk first for Justice Benjamin Kaplan of the Massachusetts Supreme Judicial Court (1978–1979) and later for Justice Thurgood Marshall of the United States Supreme Court (1979–1980). magna cum laude from Harvard Law School, where he was executive editor of the Harvard Civil Rights-Civil Liberties Law Review and part of a winning team of the Ames Moot Court Competition.

in 1975 from Harvard College, where he was a member of the varsity squash team and the Harvard Lampoon.

He graduated in 1972 from the Middlesex School in Concord, Massachusetts. Sunstein was born on Septemin Concord, Massachusetts, the son of Marian (née Goodrich), a teacher, and Cass Richard Sunstein, a builder. Unsourced material may be challenged and removed.

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