Our Latest Organizational Assessment Is Here

The OIG promotes good government through fair, objective, and independent oversight. Read highlights of some of our most significant accomplishments in the past year.

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Audits, Inspections, and Evaluations Oversight Plan for 2025

Using a risk-based, tiered approach, AIE will initiate work in nine risk areas in 2025, including oversight of IIJA, IRA, and other supplemental funding provided to the DOI.

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Semiannual Report to Congress

This report highlights OIG’s work from October 1, 2024, to March 31, 2025, including its closure of 23 new recommendations before the period ended.

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Whistleblower Protection

Federal laws protect whistleblowers from reprisal for disclosing waste, fraud, abuse, and danger to public health and safety. Learn more about whistleblower protections for DOI employees, contractors, and grantees, as well as how to file a whistleblower reprisal complaint.

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Infrastructure Oversight

Congress provided more than $34 billion to U.S. Department of the Interior programs through the Infrastructure, Investment, and Jobs Act (IIJA) and the Inflation Reduction Act (IRA). The IIJA and IRA also provided resources to this office.

With fair, objective, and independent oversight, we are helping to safeguard these funds from fraud, waste, and abuse.

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RECENT REPORTS

Failure to Decommission Offshore Platforms
July 15, 2025
We found an energy company failed to decommission operations as required within one year after its Federal oil and gas leases expired.
Summary: Evaluation of the U.S. Department of the Interior’s Cyber Threat Hunting Program
August 22, 2025
DOI’s OCIO was provided recommendations to improve DOI’s enterprise-wide threat hunting capability and strengthen DOI’s IT security program.…
Improvements Needed in the U.S. Department of the Interior’s Management and Oversight of Infrastructure Investment and…
August 25, 2025
OWF did not efficiently manage IIJA fuels management funds, and the bureaus did not always expend IIJA funds in accordance with the Act.
Investigative Summary: Former Non-Profit Research Archeologist Embezzled BOR Cooperative Funds for Personal Use
July 2, 2025
We found that a former Research Archeologist at a non-profit organization embezzled over $35,000 of BOR funds for personal expenses.
Quality Control Review of the Single Audit of American Samoa for the Fiscal Year Ended September 30, 2023
July 29, 2025
We assigned an overall rating of Fail to the independent public accountant based on our review of its audit documentation for the FY 2023 American…
Wildlife and Sport Fish Restoration Grants Awarded to the State of Minnesota by the U.S. Fish and Wildlife Service
July 30, 2025
We found that the Department of Natural Resources ensured that grant funds and license revenue were used for allowable activities and complied…

Issue Areas

Infrastructure Oversight

Congress provided the OIG almost $100 million in the Infrastructure, Investment, and Jobs Act (IIJA) and $10 million in the Inflation Reduction Act (IRA) to oversee the DOI’s management of these funds. Learn how we are helping to safeguard these funds from fraud, waste, and abuse.

Responsibility to Native Americans

The Bureau of Indian Affairs and the Bureau of Indian Education provide services to 574 federally recognized tribes with a population of about 1.9 million American Indians and Alaska Natives. OIG oversight helps prevent fraud and mismanagement that diverts funds from those in need.

Financial Management

DOI has significant financial assets, including contracts, financial assistance awards (grants and cooperative agreements), property, and other resources. Within this broad area, we prioritize oversight work on grants and contracts, CARES Act, and spending under the Great American Outdoors Act.

OIG In The News

Collin County man sentenced to over 24 years in federal prison for COVID- fraud conspiracy

Press Release

SHERMAN, Texas – A McKinney man has been sentenced to over 24 years in federal prison in a COVID - fraud conspiracy in the Eastern District of Texas, announced Acting U.S. Attorney Jay R. Combs.

Olamide Olatayo Bello was found guilty at trial to conspiracy to commit wire fraud and conspiracy to commit money laundering and was sentenced to 293 months in federal prison by U.S. District…

The Oversight Report, Winter 2025

Press Release

Your source for the latest updates from the U.S. Department of the Interior’s Office of Inspector General