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 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

Independent Auditors’ Performance Audit Report on the U.S. Department of the Interior’s Compliance With the Federal…
January 30, 2026
KPMG LLC conducted an annual independent audit to determine the effectiveness of the DOI’s FY 2025 FISMA programs and practices.
Interior Business Center Oversight of Indirect Rate Proposals
January 28, 2026
IBC ICCAD internal control vulnerabilities increase the risk of unauthorized or erroneous rate changes, data integrity issues, and audit trail…
Progress Made by the U.S. Department of the Interior in Implementing Government Charge Card Recommendations, Fiscal…
January 28, 2026
We discuss DOI’s progress in implementing Government charge card recommendations in FY 2025 and other DOI-related charge card audits and…
Wildlife and Sport Fish Restoration Grants Awarded to the State of South Dakota by the U.S. Fish and Wildlife Service
January 26, 2026
The Department of Game, Fish, and Parks should take steps to improve its grant performance reporting and subaward management.
Independent Auditors’ Reports on the Tribal and Other Trust Funds and Individual Indian Monies Trust Funds Financial…
December 12, 2025
This report details KPMG’s audit of trust funds financial statements from the Bureau of Trust Funds Administration for fiscal years 2025 and 2024…
Wildlife and Sport Fish Restoration Grants Awarded to the State of New Mexico by the U.S. Fish and Wildlife Service
January 21, 2026
The Department of Game and Fish should take steps to improve its leave allocation process, as well as subaward and equipment management.

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