Welcome to the Official Site of the Architect of the Capitol (AOC) Office of Inspector General (OIG).

AOC programs and operations include maintenance of iconic landmarks such as the U.S. Capitol, Capitol Grounds, Capitol Visitor Center, House Office Buildings, Library of Congress, Senate Office Buildings, Supreme Court and U.S. Botanic Garden.

The AOC OIG promotes efficiency and effectiveness to deter and prevent fraud, waste and abuse in AOC programs and operations.  We do this through value-added, transparent and independent audits, evaluations and investigations. We strive to positively impact the AOC and the taxpayer while keeping Congress informed.

The AOC is excluded from the Freedom of Information Act of 1966, as amended, and the Whistleblower Protection Act of 1989, as amended; however, the AOC is included in the Congressional Accountability Act of 1995, as amended.