 He was appointed by HHS Secretary Tommy G. Thompson on May 5, 2002 and served until replaced on April 28, 2004.In this role, Mr. Hauer was responsible for coordinating the country’s medical and public health preparedness and response to emergencies, including acts of biological, chemical and nuclear terrorism.He was formerly the director of New York City's Office of Emergency Management under mayor Rudy Giuliani from 1996 to 2000.