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Office of the Inspector General (OIG) – DOI: A Guide for New Government Contractors

Understanding the Office of the Inspector General (OIG)

What is the OIG?

The Office of the Inspector General (OIG) for the U.S. Department of the Interior (DOI) is an independent oversight agency responsible for preventing fraud, waste, and abuse in DOI programs and operations. OIG conducts audits, evaluations, and investigations to ensure accountability, efficiency, and compliance within DOI’s bureaus, offices, and contractors.

OIG plays a crucial role in ensuring transparency in federal spending and improving the integrity of DOI’s financial and administrative processes.

Key Areas of Focus:


Mission and Goals

OIG’s mission is:
“To provide independent oversight and promote accountability within the Department of the Interior through audits, investigations, and evaluations that prevent fraud, waste, and abuse.”

The OIG works to:


OIG Organizational Structure

The DOI OIG operates through specialized offices and divisions, including:

OIG collaborates with DOI bureaus, law enforcement agencies, and federal prosecutors to enforce accountability and compliance.


Advancing Your Career as a Contractor with OIG

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