Investigations

The Office of Investigations is comprised of criminal and general investigators that are responsible for conducting criminal, civil, and administrative investigations of fraud and a variety of other allegations affecting DOT, its operating administrations, programs, and grantees (grant funds).  The Office of Investigation’s top priorities involve crimes with a public safety impact, fraud schemes that significantly impact DOT funds, and employee integrity violations. Common public safety investigations include corporate conspiracies to evade truckers' hours-of-service regulations, substandard aviation parts, and transport of hazardous materials. Common fraud investigations include bid-rigging and collusion, time and materials overcharging, product substitution, disadvantaged business enterprise fraud, bribery and kickbacks, and theft and embezzlement.  The Office of Investigations also manages a Hotline Complaint Center and investigates whistleblower complaints, including those referred by the U.S. Office of Special Counsel.

The Investigative Process

Learn more about OIG's process for initiating and conducting investigations.

OIG Investigative Priorities

Learn more about the OIG's three main investigative priorities.

Common Fraud Schemes

Learn more about common fraud schemes involving Department of Transportation Funds.

Contractor FAR Reporting

The Federal Acquisition Regulation (FAR) requires that contractors timely notify the Office of Inspector General whenever there is credible evidence to believe that a violation(s) of criminal law and/or the civil False Claims Act have occurred in connection with a Federal contract

Print Fraud Awareness Posters

Print and share fraud awareness placards and posters with contact information for the OIG Hotline.

Fraud Alert: Identity Theft Scheme

Learn more about a recurring identity theft scheme requesting DOT contractor financial information.

IMPACT Magazine

IMPACT Magazine provides an annual behind-the-scenes look at some of the more significant investigations conducted by OIG special agents.

OIG Wanted Fugitives

Defendants charged with transportation related crimes sometimes flee rather than face prosecution or serve a sentence. Help us locate these fugitives from justice.