Inspector General
Eric J. Soskin
As Inspector General, Mr. Soskin leads OIG's independent and objective reviews of the efficiency and effectiveness of DOT's programs and operations, as well as efforts to detect and prevent fraud, waste, abuse, and violations of law. Mr. Soskin was sworn in was sworn in as the Inspector General on January 11, 2021. Mr. Soskin was nominated to the position by President Donald J. Trump and confirmed by the U.S. Senate on December 21, 2020.
Deputy Inspector General
Mitch Behm
As Deputy Inspector General, Mr. Behm provides advice to the Inspector General and assists in managing day-to-day operations. Deputy Inspector General Behm directly oversees the Office of Quality Assurance Reviews and Internal Affairs, and provides direction for the OIG’s oversight of DOT programs.
Chief Counsel
Omer Poirier
As Chief Counsel, Mr. Poirier is the chief legal officer at DOT OIG. He supervises the legal staff and coordinates all legal matters for the Office of Inspector General.
Assistant Inspector General for Strategic Communications and Programs
Andrea Nossaman
As Assistant Inspector General for Strategic Communications and Programs, Andrea Nossaman oversees a variety of activities that provide strategic value, critical advice, and mission support across DOT OIG. This office encompasses several high-impact interdependent program areas, including Government and Public Affairs; Budget and Financial Management; Civility, Diversity, and Inclusion; Communications; Organizational Development; and Administrative Professional and Executive Assistant Services.
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Deputy Assistant Inspector General for Government and Public Affairs
Nathan Richmond
As Deputy Assistant Inspector General for Government and Public Affairs, Nathan Richmond serves as the main point-of-contact for Members and Committees of Congress and as an official spokesperson to the media. Additionally, Nathan acts as a primary liaison to the Office of Management and Budget and the Council of the Inspectors General on Integrity and Efficiency (CIGIE) as well as the Government and Public Affairs Offices of the Office of the Secretary of Transportation and each of DOT's modal Operating Administrations.
Assistant Inspector General for Administration and Management
Karl Schuler
As Assistant Inspector General for Administration and Management, Karl Schuler oversees DOT OIG’s full range of business management services—human resources, training, information technology, facilities and asset management, and acquisitions and procurements. He leads a team that performs critical support functions for all of DOT OIG’s employees—both at Headquarters and in multiple regional offices.
Principal Assistant Inspector General for Investigations
Elise Chawaga
As Principal Inspector General for Investigations, Ms. Chawaga oversees DOT OIG’s Office of Investigations—specifically, the criminal and general investigators who conduct criminal, civil, and administrative investigations of fraud and a variety of other allegations affecting DOT, its operating administrations, programs, grantees, and grant funds. The Office of Investigation’s top priorities include crimes that affect public safety; procurement and grant fraud schemes involving DOT funds; consumer and workforce fraud; and employee integrity violations.
Deputy Assistant Inspector General for Investigations
Susan Ocampo
As Deputy Assistant Inspector General for Investigations, Ms. Ocampo supervises the day-to-day investigative activities performed by DOT OIG staff at Headquarters and in our Regional Offices. Nationwide, DOT OIG’s special agents and other investigative staff conduct investigations into and analysis of DOT programs and operations; at Headquarters, this work includes management of the Hotline Complaint Center.
Principal Assistant Inspector General for Auditing and Evaluation
Charles A. (Chuck) Ward
As Principal Assistant Inspector General for Auditing and Evaluation, Mr. Ward leads the audit division of the DOT OIG, directing all OIG audits related to DOT programs and its agencies. He assumed this role in January 2023.
Assistant Inspector General for Audit Operations and Special Reviews
Tiffany Mostert
As Assistant Inspector General for Audit Operations and Special Reviews, Tiffany Mostert is responsible for overseeing DOT OIG’s audit support functions, including planning, policies, and procedures; support and audit work conducted by DOT OIG experts in economics, statistics, and engineering; and special reviews. She also fosters cooperative relationships both within DOT OIG and Department-wide.
Assistant Inspector General for Aviation Audits
Nelda Z. Smith
As Assistant Inspector General for Aviation Audits, Ms. Smith is responsible for managing DOT OIG’s reviews of a wide range of Federal Aviation Administration (FAA) programs, including the Next Generation Air Transportation System (NextGen), air traffic control operations, and key aviation safety workforces.
Assistant Inspector General for Financial Audits
Dory Dillard-Christian
As Assistant Inspector General for Financial Audits, Ms. Dillard-Christian is responsible for providing executive level leadership and direction to OIG audits of the Department’s financial statements and management, as well as oversight of single audits that relate to the Department’s programs.
Assistant Inspector General for Surface Transportation Audits
David Pouliott
As Assistant Inspector General for Surface Transportation Audits, Mr. Pouliott is responsible for managing audits, evaluations, and economic analyses of highway, transit, rail, maritime, pipeline and hazardous materials programs and projects as well as transportation financing issues.
Assistant Inspector General for Acquisition and Procurement Audits
Carolyn Hicks
Assistant Inspector General for Information Technology Audits
Kevin Dorsey
As Assistant Inspector General for Information Technology Audits, Mr. Dorsey is responsible for leading OIG audits of DOT’s information technology (IT) programs. These audits include, but are not limited to, annual assessments of the Department’s information security program and practices, component-level vulnerability assessments of network infrastructure, system-level security control reviews, and other IT-related areas, including cybersecurity.
Chief Economist
Betty Krier
As Chief Economist, Betty Krier leads the DOT OIG economics group in conducting often complex analyses to assess the efficiency and effectiveness of departmental programs and regulatory actions, as well as to examine issues of potential departmental concern.