David C. Williams was sworn in as the second independent Inspector General (IG) for the U.S. Postal Service on August 20, 2003. Williams is responsible for a staff of more than 1,125 employees — located in cities nationwide — that conducts independent audits and investigations for the largest civilian federal agency that has over $65 billion in annual revenues, a workforce of 522,000 employees and 31,000 Postal Service managed retail facilities.

The office is under the general supervision of the nine Postal Service governors and is not subject to any other Postal Service supervision.

In July 2011, Williams was appointed by the Obama administration to serve as Vice Chair on the Government Accountability and Transparency Board. The Board will develop plans to enhance transparency for federal spending and to improve methods for detecting and acting upon fraud and waste in federal programs.

In his last position, Williams served as the Deputy Assistant Administrator for Aviation Operations at the Transportation Security Administration (TSA) from August 2002 until August 2003, where he managed the Aviation Inspection Program at federalized airports.

Williams has served as IG for five federal agencies. He was first appointed by President George Bush to serve as IG for the U.S. Nuclear Regulatory Commission from 1989 to 1996. President William Clinton next appointed him IG for the Social Security Administration from 1996 to 1998, and then as IG for of the Department of the Treasury in 1998. In 1999, President Clinton named him as the first IG for Tax Administration of the Department of Treasury, where he directed a staff of 1,050 to detect fraud, waste and abuse. In 2001 President George W. Bush named Williams the Acting IG for HUD, while he was also serving at the Department of the Treasury.

Williams served in the U.S. Army Military Intelligence and began his civilian federal career as a special agent with the U.S. Secret Service. Moving up the career ladder, he served as Director of Operations in the Office of Labor Racketeering at the Department of Labor; the President’s Commission on Organized Crime; and as Director of the Office of Special Investigations at the U.S. General Accounting Office. Williams is the recipient of the U.S. Bronze Star and the Vietnamese Medal of Honor for service in Vietnam.

A native of Illinois, Williams graduated from Southern Illinois University, Edwardsville, Ill., and received his Advanced Degree in Education and a Masters in Education from the University of Illinois in Champaign, Ill. He also attended the U.S. Military Intelligence Academy, the Federal Law Enforcement Training Center and the U.S. Secret Service Training Academy.