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Office of Inspector General
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OIG Reports

Following is a listing of all reports issued by the Office of Inspector General.

Reports by Year

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Special Reports

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Congressionally Requested and Chemical Safety Board Reports

  • Congressionally Requested Reports
  • Chemical Safety Board Reports (U.S. CSB)

What is the EPA OIG?

The Office of Inspector General is an independent organization that performs audits and investigations of the EPA to detect and prevent fraud, waste and abuse. Learn more

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Report Corrections

Any time the OIG corrects a report post-issuance, the report link in the listing below will be accompanied by a correction notation for a period of two weeks.

Our Audit and Evaluation Reports

The EPA OIG conducts financial and performance audits to determine the efficiency and effectiveness of agency operations and programs. Audits identify potential fraud, waste and abuse; assess program compliance and management of agency processes; identify opportunities to improve human health and the environment; and offer recommendations for cost savings and other efficiencies.

The EPA OIG also conducts evaluations of EPA programs and activities that support clean air, clear water, safer chemicals, cleaner communities, and scientific research. The office assesses the design, implementation, and measurement of EPA programs, including evidence of program effectiveness and results.

Audits and evaluations differ from our investigations in that they do not deal with criminal activities and generally look at groups, processes, controls or structures, not individual employees. Also, when initiated, most audits are announced publicly, and upon their conclusion, a final report is posted here on the Reports page.

2023 OIG Reports

Date Title Publication Number Environmental Goal(s) Report Teams
March 30, 2023 Management Implication Report: Mitigation of Grant Fraud Vulnerabilities     OI
March 29, 2023 Infrastructure Investment and Jobs Act Progress Report—Year One    Operating efficiently and effectively OSAR
March 23, 2023 Compendium of Open and Unresolved Recommendations Related to Infrastructure Investment and Jobs Act-Funded Programs   Operating efficiently and effectively OSAR
March 15, 2023 Management Implication Report Concerning Vulnerabilities to EPA OIG Information Security and Oversight Independence      
Mar 7, 2023

The EPA’s January 2021 PFBS Toxicity Assessment Did Not Uphold the Agency’s Commitments to Scientific Integrity and Information Quality

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23-E-0013 Operating efficiently and effectively IEE
Feb 28, 2023 The EPA’s Residential Wood Heater Program Does Not Provide Reasonable Assurance that Heaters Are Properly Tested and Certified Before Reaching Consumers
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23-E-0012 Improving air quality, Compliance with the law IEE
Jan 25, 2023 The EPA Is Not on Track to Reach Its National Compliance Initiative Goals to Stop Aftermarket Defeat Devices and Tampered Vehicles
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23-E-0006 Improving air quality, Partnering with states and other stakeholders IEE


2022 OIG Reports are available.

GAGAS and Non-GAGAS Reports

Reports from October 2016 and later marked with a P, F or A in their report number follow GAGAS, official examination standards established by the federal government. This sign of quality ensures the integrity, objectivity and independence of our work.

Reports marked with an N, E, B or S signify the limited “non-GAGAS” work that reflects back on our recent recommendations to highlight the impact of our oversight mission.

Report Type Middle Character (i.e., 20-X-001)
GAGAS-compliant performance audit P
GAGAS-compliant financial statement audit F
GAGAS-compliant attestation audit A
Non-GAGAS or Non-QSIE-compliant report N
QSIE -compliant evaluation E
Internal report B
Single audit report S

Report Teams

  • AID - Administrative Investigations
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  • EII - Environmental Investment and Infrastructure
  • FA - Financial
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  • IRM - Information Resources Management
  • OM - Office of Management
  • PCC - Pollution Control and Clean Up
  • POCO - Programs, Offices, and Centers Oversight

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.

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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.

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Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 30, 2023
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