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Our Latest Organizational Assessment Is Here

The OIG promotes good government through fair, objective, and neutral 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 2026

Using a risk-based, tiered approach in developing this work plan to best focus our resources, AIE will initiate work in nine risk areas in 2026, including oversight of supplemental funding provided to DOI.

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Semiannual Report to Congress

This report highlights OIG’s work from April 1, 2025, to September 30, 2025.

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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

Issue Areas

U.S. Capitol Dome at night
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

Homeland Security Task Force Investigation Leads To Nigerian National Charged with Money Laundering and Conspiracy to Commit Wire Fraud and Mail Fraud
Press Release

SCRANTON- The United States Attorney’s Office for the Middle District of Pennsylvania announced that Okeoghene Patrick Udugba, age 45, of Frisco, Texas, was indicted by a federal grand jury on charges of Money Laundering and Conspiracy to Commit Wire Fraud and Mail Fraud. 

Three Individuals Sentenced for Scheme to Steal Money from Accounts Managed by the Department of the Interior Bureau of Trust Funds Administration
Press Release

Bismarck – United States Attorney Nichoas W. Chase announced that on June 16, 2026, Ranita Lynn Freeman, Age 32, Minot, North Dakota (and a member of the MHA Nation), appeared in the United States District Court for the District of North Dakota and was sentenced before Judge Daniel L. Hovland to serve 42 months in federal prison, followed by three years of supervised…