Report: System Review Report Final 5.22.25
May 22, 2025, Report No. OIG-CA-25-046
Why We Did This Report
The U.S. Department of the Treasury OIG reviewed the system of quality control for the audit organization of the U.S. Environmental Protection Agency (EPA) Office of Inspector General (OIG) in effect for the year ended September 30, 2023. A system of quality control encompasses EPA OIG’s organizational structure and the policies adopted and procedures established to provide it with reasonable assurance of conforming in all material respects with Government Auditing Standards1 (GAS) and applicable legal and regulatory requirements. The elements of quality control are described in Government Auditing Standards.
Summary of Findings
The U.S. Department of the Treasury OIG determined that the system of quality control for the audit organization of EPA OIG in effect for the year ended September 30, 2023, has been suitably designed and complied with to provide EPA OIG with reasonable assurance of performing and reporting in conformity in all material respects with applicable professional standards and applicable legal and regulatory requirements.
Audit organizations can receive a rating of pass, pass with deficiencies, or fail. EPA OIG has received an External Peer Review rating of pass.
Report Materials
OIG Independence of EPA
The EPA's Office of Inspector General is a part of the EPA, although Congress provides our funding separate from the agency, to ensure our independence. We were created pursuant to the Inspector General Act of 1978, as amended.
Environmental Protection Agency | Office of Inspector General
1200 Pennsylvania Avenue, N.W. (2410T) | Washington, DC 20460 | 202-566-2391
OIG Hotline: 1-888-546-8740.