Federal Office of Inspectors General (OIG) are required to receive an independent, comprehensive peer review of its audit operations once every three years, consistent with applicable standards and guidelines.  In general, the peer reviews determine whether the OIG's internal quality control systems are adequately designed and provide reasonable assurance that the OIG follows applicable standards (e.g., Government Auditing Standards), policies and procedures.  An External Peer Review report is issued with a rating of pass, pass with deficiencies, or fail.

• 2022 Peer Review
• 2019 Peer Review
• 2016 Peer Review:
  Letter of Comment
  System Review Report
• 2013 Peer Review
• 2010 Peer Review
• 2007 Peer Review