Professor Nathan is chair of the steering committee of the Institute for the Study of Human Rights and chair of the Morningside Institutional Review Board (IRB) at Columbia. He served as chair of the Department of Political Science, 2003–2006, chair of the Executive Committee of the Faculty of Arts and Sciences, 2002–2003, and director of the Weatherhead East Asian Institute, 1991–1995. Off campus, he is a member of the boards of Human Rights in China, and the National Endowment for Democracy, and a member of the Advisory Committee of Human Rights Watch, Asia, which he chaired, 1995–2000.