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Abbreviation
DOT
Agencies
Department of Transportation
National Transportation Safety Board
Surface Transportation Board
Federal Agency
Yes
Location

United States

What to Report to the OIG Hotline
If you know about waste, fraud, abuse, or misconduct relating to a Department of Transportation (DOT) employee, program, contract, or grant you may want to report it to the DOT, Office of Inspector General (OIG) Hotline. Allegations may be reported 24 hours a day, seven days a week by DOT employees, contractors, or the general public. The DOT OIG has jurisdiction over disclosures for all DOT modal Operating Administrations involving:
  • Contract and Grant Fraud (view a description of Common Fraud Schemes)
  • Environmental, Health, and Safety Violations
  • Computer Crimes
  • Product Substitution and Suspect/Counterfeit Parts
  • Bribery, Kickbacks, and Gratuities
  • False Statements and False Claims
  • Conflicts of Interest and Ethics Violations
  • Travel Fraud
  • Theft or Abuse of Government Property
  • Violation(s) of Criminal Law and/or the Civil False Claims Act in Connection with a Federal Contract
  • Other Violations of Federal Laws and Regulations
The DOT OIG has jurisdiction to investigate allegations of whistleblower retaliation involving all:
  • DOT Employees
  • Employees of DOT Contractors, Subcontractors, Grantees, and Sub-grantees

Quality Control Review on a Single Audit of the Puerto Rico Highways and Transportation Authority, Guaynabo, PR

2025
QC2025030
Audit
Department of Transportation OIG
Department of Transportation

Our Objective(s)To determine (1) whether Crowe PR PSCs work complied with the Single Audit Act of 1984, as amended, and the Office of Management and Budget's Uniform Guidance, and the extent to which we could rely on the auditor's work on the U.S. Department of Transportations (DOT) major programs...

FRA Needs To Improve Its Inspection and Data Collection Processes to Effectively Oversee Compliance with the Roadway Worker Protection Regulation

2025
ST2025029
Audit
Department of Transportation OIG
Department of Transportation

Our Objective(s)To evaluate the Federal Railroad Administrations (FRA) oversight of railroads implementation of the Roadway Worker Protection (RWP) regulation. Specifically, we assessed (1) RWP oversight activities conducted by FRA safety inspectors, (2) FRAs on-track safety program reviews, and (3)...

Summary Report on Significant Single Audit Findings Impacting DOT Programs for the 3-Month Period Ending March 31, 2025

2025
SA2025031
Audit
Department of Transportation OIG
Department of Transportation

Our Objective(s)To evaluate single audit reports uploaded to the Federal Audit Clearinghouse between January 1, 2025 and March 31, 2025, and identify findings that affect directly awarded Department of Transportation (DOT) programs. Why This AuditOIG performs oversight of independent, non-Federal...

DOTs Fiscal Year 2024 Payment Integrity Information Act Compliance Review

2025
FS2025032
Audit
Department of Transportation OIG
Department of Transportation

Our Objective(s)To determine whether the Department of Transportation (DOT) complied with Payment Integrity Information Act of 2019 (PIIA) requirements as prescribed by the Office of Management and Budget (OMB). Why This AuditPIIA requires agencies to identify, report, and reduce improper payments...

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