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The Office of Inspector General (OIG) is an independent unit established by law which is responsible for promoting economy, efficiency, and effectiveness and detecting and preventing fraud, waste, and mismanagement in the General Services Administration's (GSA) programs and operations. Our mission is to help the GSA to effectively carry out its responsibilities and to protect the public interest by bringing about positive changes in the performance, accountability, and integrity of GSA programs and operations.

We meet our mission through:

  • Independent audits and reviews of contracts, data and financial systems, information technology, and programs.
  • Criminal and civil investigations.
  • Reviews of proposed legislation and regulations.
  • Consultation with GSA, congressional, and law enforcement officials.

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Sean O’Sullivan, age 61, of Sackets Harbor, New York, was sentenced to 2 years of probation and ordered to pay $345,271.34 in restitution to the United States after previously pleading guilty to conspiracy to commit wire fraud in relation to government contracts and conspiracy to commit an offense against the United States by offering and giving gratuities to a former Fort Drum contracting officer.


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GSA OIG headquarters Washington, D.C. view all offices image

General Contact:


[email protected]


1800 F St NW
Washington, D.C. 20405