Government Contracting by — Inspector General Office

The DOD OIG is the largest federal inspector general office, overseeing the Department of Defense with a budget exceeding $400 billion annually. It conducts audits, investigations, and evaluations of defense programs, operations, and personnel.

HHS OIG oversees the largest civilian department budget, including Medicare, Medicaid, CDC, FDA, and NIH. It is one of the most active OIGs, recovering billions in healthcare fraud annually.

VA OIG oversees the second-largest federal department, including 171 VA medical centers, benefits programs, and national cemeteries. It focuses on quality of care, benefits fraud, and procurement integrity.

DHS OIG oversees the department responsible for border security, immigration, cybersecurity, disaster response, and transportation security. It monitors one of the largest contract portfolios in the civilian government.

DOJ OIG oversees the FBI, DEA, ATF, BOP, U.S. Marshals, and other law enforcement components. It investigates misconduct, audits programs, and evaluates the effectiveness of DOJ operations.

Treasury OIG oversees the department managing federal finances, tax policy, and economic sanctions. It monitors financial regulatory agencies and Treasury's role in economic stabilization.

TIGTA provides independent oversight of IRS activities, focusing on tax administration programs, IRS employee conduct, and the security of IRS systems and data processing.

USDA OIG is one of the oldest federal OIGs, overseeing farm programs, food safety, nutrition assistance, forest management, and rural development programs across USDA's 29 agencies.

DOI OIG oversees the management of 500 million acres of federal land, natural resource extraction, tribal programs, and national parks. It monitors one of the largest real property portfolios in the government.

DOE OIG oversees the national nuclear security enterprise, energy research programs, and environmental cleanup operations. DOE manages some of the largest single contracts in the federal government.

DOT OIG oversees the FAA, Federal Highway Administration, Federal Transit Administration, and other modal agencies managing the nation's transportation infrastructure and safety programs.

ED OIG oversees federal education programs including student financial aid, Title I grants, IDEA special education funding, and the department's IT systems and internal operations.

HUD OIG oversees federal housing programs including FHA mortgage insurance, public housing, Section 8 vouchers, Community Development Block Grants, and homeless assistance programs.

State OIG oversees U.S. diplomatic operations worldwide, embassy construction, foreign assistance programs, and the Broadcasting Board of Governors. It inspects every embassy and consulate.

Commerce OIG oversees the Census Bureau, NOAA, NIST, USPTO, and other agencies managing economic data, weather services, standards, and international trade programs.

DOL OIG oversees employment and training programs, unemployment insurance, workplace safety (OSHA), mine safety (MSHA), and worker protection programs across the Department of Labor.

EPA OIG oversees environmental protection programs including Superfund cleanup, Clean Air and Clean Water Act enforcement, pesticide regulation, and state environmental grants.

NASA OIG oversees the civilian space program including human spaceflight, space exploration, aeronautics research, and science missions. NASA is one of the largest contract-dependent agencies.

GSA OIG oversees the government's primary procurement and property management agency. GSA manages $75 billion in annual contracts, 370 million square feet of space, and a 220,000-vehicle fleet.

SBA OIG oversees small business assistance programs including disaster loans, 8(a) certifications, HUBZone designations, SBIR grants, and government contracting support programs.

SSA OIG oversees Social Security retirement, disability, and supplemental income programs serving over 70 million beneficiaries. It investigates fraud and evaluates program efficiency.

OPM OIG oversees federal human resources programs including the Federal Employees Health Benefits Program, retirement systems, background investigations, and federal hiring processes.

NRC OIG oversees the licensing, regulation, and safety oversight of civilian nuclear power plants, research reactors, and nuclear materials. It monitors NRC's regulatory effectiveness.

USPS OIG is one of the largest OIG offices, overseeing the Postal Service's $80 billion operation. It investigates mail theft, fraud, and waste while auditing postal operations and technology investments.

USAID OIG oversees U.S. foreign assistance programs in over 100 countries. It monitors billions in development contracts and grants for humanitarian aid, economic development, and governance programs.

NSF OIG oversees the agency funding fundamental research and education in science and engineering. It monitors billions in research grants and major facility construction projects.

CFPB OIG oversees the agency regulating consumer financial products and services including mortgages, credit cards, and student loans. It monitors the Bureau's enforcement, rulemaking, and consumer education programs.

Amtrak OIG oversees the national passenger railroad system, including infrastructure improvements, equipment procurement, and operations across the Northeast Corridor and national network.

TVA OIG oversees the nation's largest public power utility serving 10 million people across seven states. It monitors power generation, transmission, and economic development programs.

AmeriCorps OIG oversees national service programs including AmeriCorps, Senior Corps, and the Social Innovation Fund that engage millions of Americans in community service.

Peace Corps OIG oversees the agency deploying American volunteers to developing countries for community development, education, and health programs across 60+ nations.

The IC IG provides independent oversight across the 18 elements of the Intelligence Community. It conducts cross-community inspections, audits, and investigations of intelligence programs.

CIA OIG conducts independent audits, inspections, and investigations of CIA programs and operations. It operates largely in classified environments and reports to Congress through classified channels.

NSA OIG oversees signals intelligence and cybersecurity operations at the nation's largest intelligence agency. It monitors compliance with privacy protections and procurement integrity.

NRO OIG oversees the agency responsible for designing, building, and operating reconnaissance satellites. NRO manages some of the most expensive and technologically complex acquisitions in government.

DIA OIG oversees the defense intelligence enterprise providing military intelligence to warfighters and policymakers. It monitors intelligence analysis, collection, and support operations.

NGA OIG oversees the agency providing geospatial intelligence (GEOINT) to support national security. It monitors imagery analysis, mapping programs, and geospatial technology development.

DCAA provides audit and financial advisory services for DoD and other federal agencies on contracts and subcontracts. It is the principal audit agency for defense contracting.

DCIS is the criminal investigative arm of the DOD OIG. It investigates fraud, bribery, corruption, and cybercrime affecting DoD programs, operations, and personnel.

The Army IG is the oldest inspector general function in the U.S. military, providing independent oversight of Army programs, operations, and personnel readiness.

The Navy IG provides independent oversight of Navy and Marine Corps programs, operations, and shipbuilding programs that represent some of the largest acquisition programs in the federal government.

The Air Force IG provides independent oversight of Air Force and Space Force programs, including major weapon systems, space programs, and installation operations.

The Marine Corps IG oversees Marine Corps readiness, training, and equipment programs. It ensures Marines have the equipment, training, and support needed for expeditionary operations.

FDIC OIG oversees the agency that insures bank deposits and resolves failed financial institutions. It monitors FDIC's supervision of financial institutions and management of the deposit insurance fund.

SEC OIG oversees the agency regulating securities markets, protecting investors, and maintaining fair markets. It evaluates SEC enforcement effectiveness and operational efficiency.

The Fed Reserve OIG oversees the Board of Governors and the Consumer Financial Protection Bureau. It monitors the Fed's supervisory and regulatory activities and internal operations.

FHFA OIG oversees the regulator of Fannie Mae, Freddie Mac, and the Federal Home Loan Banks. It monitors the conservatorship of the government-sponsored enterprises.

CFTC OIG oversees the regulation of commodity futures, options, and swaps markets. It evaluates the effectiveness of CFTC enforcement and market surveillance programs.

NCUA OIG oversees the agency that charters, regulates, and insures federal credit unions. It monitors the Share Insurance Fund and examinations of the nation's credit union system.

EXIM OIG oversees the official export credit agency supporting American exports through loans, guarantees, and insurance. It monitors the bank's credit risk management and fraud prevention.

DFC OIG oversees the agency financing private-sector development projects in developing countries. It monitors investment portfolio risk, project outcomes, and development impact.

FERC OIG oversees the regulation of interstate electricity, natural gas, hydropower, and oil pipeline industries. It monitors FERC's regulatory processes and internal operations.

PBGC OIG oversees the agency guaranteeing pension benefits for 33 million Americans in private-sector defined benefit plans. It monitors the insurance program and plan trusteeships.

SIGAR was established to oversee U.S. reconstruction spending in Afghanistan. It has conducted extensive audits and investigations of contracts, grants, and programs in the reconstruction effort.

SIGPR oversees the implementation of pandemic relief funds including Treasury lending programs, Federal Reserve emergency facilities, and other CARES Act economic stabilization measures.

PRAC coordinates oversight of pandemic relief spending across all federal agencies. It brings together IGs from across government to prevent fraud, waste, and abuse in trillions of pandemic funds.

FCC OIG oversees the agency regulating communications by radio, television, wire, satellite, and cable. It monitors spectrum management, Universal Service Fund distribution, and broadband programs.

FTC OIG oversees the agency protecting consumers and promoting competition. It evaluates FTC enforcement actions, consumer education programs, and internal management effectiveness.

GAO's inspector general function oversees the audit agency itself, ensuring that GAO maintains its own standards of integrity and efficiency in supporting Congressional oversight.

Smithsonian OIG oversees the world's largest museum, education, and research complex with 21 museums, the National Zoo, and nine research facilities holding 157 million artifacts.

CPB OIG oversees federal funding to public television and radio stations nationwide. It monitors grant compliance and financial management of the public broadcasting system.

FCA OIG oversees the independent agency regulating the Farm Credit System, the nation's largest agricultural lending cooperative providing credit to farmers, ranchers, and rural communities.

FEC OIG oversees the agency enforcing federal campaign finance laws. It monitors disclosure systems, audit processes, and the management of public funding for presidential elections.

FLRA OIG oversees the agency administering the labor-management relations program for federal employees. It monitors the resolution of labor disputes and unfair labor practice complaints.

FMC OIG oversees the regulation of oceanborne international transportation. It monitors FMC's enforcement of shipping laws and its management of carrier agreements and tariff filings.

NLRB OIG oversees the agency enforcing the National Labor Relations Act governing labor-management relations in the private sector. It monitors case processing and regional office operations.

CPSC OIG oversees the agency protecting the public from unreasonable risks of injury associated with consumer products. It monitors product testing, enforcement, and recall programs.

EEOC OIG oversees the agency enforcing federal workplace discrimination laws. It monitors charge processing, litigation support, mediation programs, and agency management.

GPO OIG oversees the agency producing and distributing official government publications, secure credentials (passports, smart cards), and providing digital access to government information.

LSC OIG oversees the nation's largest funder of civil legal aid, distributing grants to 131 independent nonprofit legal aid programs across every state and territory.

NEA OIG oversees the independent federal agency supporting artistic excellence, creativity, and innovation. It monitors the agency's grant-making processes and internal management.

NEH OIG oversees the agency funding humanities research, education, preservation, and public programs across the United States. It monitors grants to museums, libraries, universities, and media producers.

RRB OIG oversees the agency administering retirement, disability, and unemployment benefits for railroad workers and their families. It monitors benefit payments and program integrity.

MSPB OIG oversees the quasi-judicial agency that hears appeals from federal employees on personnel actions, including removals, suspensions, and whistleblower retaliation claims.

USITC OIG oversees the independent, quasi-judicial federal agency that provides trade expertise, determines impacts of imports, and adjudicates intellectual property trade disputes.

OSC OIG oversees the independent agency that investigates prohibited personnel practices, enforces the Hatch Act, and protects federal whistleblowers from retaliation.

EBSA oversight within DOL OIG focuses on the administration and enforcement of ERISA, protecting the retirement and health benefit plans of over 150 million American workers and their families.

Denali Commission OIG oversees the independent federal agency providing utility, infrastructure, and economic support to Alaska's remote and rural communities.

ADF OIG oversees the independent agency providing grants directly to underserved African communities and enterprises for grassroots economic development projects.

IAF OIG oversees the independent agency providing grants to grassroots organizations in Latin America and the Caribbean for community-led development projects.

The Arctic Research Commission OIG oversees the agency that establishes the national policy and priorities for Arctic research and recommends funding to federal agencies for Arctic science programs.