Government Auditing Standards require that each organization performing audits in accordance with these standards must have an external peer review. The objectives of a peer review are to determine whether an effective quality control system has been established in the office and if policies, procedures, and applicable government auditing standards are followed. Peer reviews of OIGs must be performed by reviewers independent of the audit organization being reviewed at least once every 3 years and be conducted in accordance with guidance established by the Council of Inspectors General on Integrity and Efficiency. Audit organizations can receive a rating of pass; pass with deficiencies; or fail.
The GAO OIG received a peer review rating of "pass," the highest available, for the year ending March 31, 2018. The peer review, which was completed by the National Credit Union Administration OIG in September 2018, found the GAO OIG's system of quality control was suitably designed and operating effectively to provide the GAO OIG with reasonable assurance that its audits complied with applicable professional standards and the OIG's quality controls in all material aspects.
The GAO OIG received its first external peer review for the year ending March 31, 2015. The peer review, which was completed in September 2015, found the OIG's system of quality control was suitably designed and operating effectively to provide the OIG with reasonable assurance that its audits complied with applicable professional standards in all material aspects.