Department of Transportation OIG

Our Objective(s)To assess FAA's oversight of United Airlines' maintenance practices. Specifically, we evaluated FAA's actions to address maintenance non-compliances and violations at the air carrier. Why This AuditUnited Airlines is one of the world's largest commercial air carriers, carrying over...

Our Objective(s)To perform a quality control review (QCR) of Allmond & Company, LLC's management letter related to the audit of the Great Lakes St. Lawrence Seaway Development Corporation's (GLS) financial statements for fiscal year 2025. We reviewed Allmond's management letter, dated January 7...

Our Objective(s)To perform a quality control review (QCR) of Allmond & Company, LLC's (Allmond) management letter related to the audit of the National Transportation Safety Board's (NTSB) financial statements for fiscal year 2025. We reviewed Allmond's management letter, dated January 7, 2026, and...

Our Objective(s)To perform a quality control review (QCR) of Allmond & Company, LLC's management letter related to the audit of the Surface Transportation Board's (STB) financial statements for the fiscal year ended September 30, 2025. We reviewed Allmond's management letter, dated January 7, 2026...

Our Objective(s)To perform a quality control review (QCR) of KPMG LLP's management letter related to the audit of the Federal Aviation Administration's (FAA) financial statements for fiscal year 2025. We reviewed KPMG's management letter, dated January 28, 2026, and related documentation. About This...

Our Objective(s)To perform a quality control review (QCR) of KPMG LLP's management letter related to the audit of the DOT's consolidated financial statements as of and for the fiscal year ended September 30, 2025. We reviewed KPMG's management letter, dated January 29, 2026, and related...

As required by the Inspector General Act of 1978 (as amended), this Semiannual Report summarizes the activities of the Office of Inspector General for the preceding 6-month period.

Our Objective(s)To evaluate DOT Operating Administrations' implementation of National Roadway Safety Strategy (NRSS) priority actions, monitoring of progress, and measurement of success. Specifically, we assessed DOT's (1) identification and implementation of NRSS priority actions and (2) procedures...

Our Objective(s)To assess the Department of Transportation's (DOT) (1) progress implementing the Federal policy on return to in person work and (2) procedures for overseeing compliance with worksite requirements. Why This AuditSenators Joni Ernst and Ted Cruz requested that our office review DOT's...

Our Objective(s)To assess FTA's determinations of applicants' progress toward meeting Transit Asset Management (TAM) performance targets prior to awarding Capital Investment Grants (CIG). Why This AuditThe CIG Program provides discretionary grants for the construction and expansion of transit...