The mission of OIG is to promote economy, effectiveness, efficiency, and integrity in City government by rooting out corruption, waste, and mismanagement. OIG is a watchdog for the taxpayers of the City, and it has jurisdiction to conduct independent inquiries into most aspects of City government. The Office is a certified peer-reviewed member of the Association of Inspectors General. In addition, OIG and its staff hold various certifications and memberships including the Association of Local Government Auditors, the Association of Certified Fraud Examiners, the National Association of State Auditors Comptrollers, and Treasurers, and the Society of Corporate Compliance and Ethics. OIG is organized into five operational units, three mission units—Investigations, Audit and Program Review, and Hiring Compliance—and two support units—Legal and Administration.