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Office of Inspector General

OIG Reports

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

Congressionally Requested and Chemical Safety Board Reports

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

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.

2021 OIG Reports

Date Title Publication Number Environmental Goal(s) Report Teams
June 7, 2021 EPA's National Vehicle and Fuel Emissions Laboratory Has Taken Steps to Mitigate Impact of Coronavirus Pandemic on Mobile Source Emission Compliance 21-E-0158 Operating efficiently and effectively, COVID/Pandemic-related, “Flash” report ER
May 2021 Semiannual Report to Congress: October 1, 2020-March 31, 2021 EPA-350-R-21-001    
May 24, 2021

EPA Deviated from Typical Procedures in Its 2018 Dicamba Pesticide Registration Decision

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21-E-0146 Ensuring the safety of chemicals T
May 14, 2021 EPA Complies with Payment Integrity Information Act but Needs to Determine Cost Allowability When Testing for Improper Grant Payments 21-P-0135 Compliance with the law C
May 13, 2021

Resource Constraints, Leadership Decisions, and Workforce Culture Led to a Decline in Federal Enforcement

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21-P-0132 Compliance with the law, Partnering with states and other stakeholders, Operating efficiently and effectively W
May 12, 2021 Staffing Constraints, Safety and Health Concerns at EPA's National Enforcement Investigations Center May Compromise Ability to Achieve Mission 21-P-0131 Operating efficiently and effectively, Hotline Report ER
May 11, 2021 EPA Helps States Reduce Trash, Including Plastic, in U.S. Waterways but Needs to Identify Obstacles and Develop Strategies for Further Progress 21-P-0130 Ensuring clean and safe water W
May 6, 2021

EPA Should Conduct New Residual Risk and Technology Reviews for Chloroprene- and Ethylene Oxide-Emitting Source Categories to Protect Human Health

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21-P-0129 Improving air quality A
May 4, 2021 EPA Did Not Conduct Agencywide Risk Assessment of CARES Act Appropriations, Increasing Risk of Fraud, Waste, Abuse, and Mismanagement 21-E-0128 Compliance with the law, Operating efficiently and effectively, COVID/Pandemic-related, “Flash” report FO
Apr 21, 2021 Improved Review Processes Could Advance EPA Regions 3 and 5 Oversight of State-Issued National Pollutant Discharge Elimination System Permits 21-P-0122 Ensuring clean and safe water, Hotline Report W
Apr 20, 2021 Concerns About the Process Used for the SAFE Vehicles Rule Demonstrate the Need for a Policy on EPA’s Role in Joint Rulemakings 21-E-0125 Operating efficiently and effectively ER
Apr 16, 2021 EPA Needs to Improve Processes for Updating Guidance, Monitoring Corrective Actions, and Managing Remote Access for External Users 21-E-0124 Compliance with the law, Operating efficiently and effectively IRM
Apr 15, 2021 EPA Delayed Risk Communication and Issued Instructions Hindering Region 5’s Ability to Address Ethylene Oxide Emissions 21-P-0123 Improving air quality, Congressional Request A
Mar 31, 2021

EPA Does Not Always Adhere to Its Established Action Development Process for Rulemaking

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21-P-0115 Operating efficiently and effectively ER
March 2021 EPA OIG's Response to the COVID-19 Pandemic      
Mar 29, 2021 EPA Does Not Consistently Monitor Hazardous Waste Units Closed with Waste in Place or Track and Report on Facilities That Fall Under the Two Responsible Programs 21-P-0114 Cleaning up and revitalizing land L
Mar 10, 2021 EPA Improperly Awarded and Managed Information Technology Contracts 21-P-0094   C
Feb 23, 2021 U.S. Chemical Safety and Hazard Investigation Board's Compliance in Fiscal Year 2020 with Improper Payments Legislation and Guidance 21-E-0084   C
Feb 10, 2021

EPA Is at Risk of Not Achieving Special Local Needs Program Goals for Pesticides

Report updated on 3/1/2021

21-E-0072 Ensuring the safety of chemicals T
Feb 9, 2021 CSB's Information Security Program Is Not Consistently Implemented; Improvements Are Needed to Address Four Weaknesses 21-E-0071   IRM
Feb 8, 2021 EPA Mostly Adheres to Regulations When Assessing Risks of New Pesticides but Should Improve Internal Controls 21-P-0070 Ensuring the safety of chemicals T
Jan 6, 2021 Office of Research and Development Initiatives to Address Threats and Risks to Public Health and the Environment from Plastic Pollution Within the Waters of the United States 21-N-0052   W
Jan 5, 2021 EPA's Fiscal Years 2019 and 2018 Hazardous Waste Electronic Manifest System Fund Financial Statements 21-F-0045 Operating efficiently and effectively FA

2020 OIG Reports are available.

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GAGAS and Non-GAGAS Reports

Reports from October 2016 and later marked with a P, F or A in their report number follow GAGAS, Exitofficial 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
  • BOD - Business Operations
  • CSB - US Chemical Safety Board
  • EII - Environmental Investment and Infrastructure
  • FA - Financial
  • IM - Implementation, Execution, and Enforcement
  • IRM - Information Resources Management
  • OM - Office of Management
  • PCC - Pollution Control and Clean Up
  • PR - Programs, Offices, and Centers Oversight

OIG Independence of EPA

The EPA's Office of Inspector General s 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 Exit.

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.