Mission
In This Section
Seth Gainer
Seth Gainer serves as the Principal Deputy Assistant Secretary for Aviation and International Affairs. He previously served as the Deputy Assistant Secretary for Governmental Affairs (Senate). Prior to joining the Department, he served for nearly a decade in the Senate under Senators Joe Manchin...
Sabrina Sussman
Chief of Staff to the Deputy Secretary, U.S. Department of TransportationSabrina Sussman serves as Chief of Staff to Deputy Secretary Polly Trottenberg, at the U.S. Department of Transportation.
Prior to this role, Sabrina served as Chief Administrative Officer and Senior Advisor...
U.S. Department of Transportation (DOT) Lease Accounting Order
U.S. Department of Transportation Organization Manual, Federal Highway Administration
Mariia Zimmerman
Mariia Zimmerman serves as the Principal Assistant Secretary for Policy at the US Department of Transportation (USDOT). Prior to this she served as the Department’s Senior Advisor for Technical Assistance and Community Solutions. Before joining the Administration, Mariia was Founder and...
Veronica Vanterpool
Acting Administrator Federal Transit AdministrationVeronica Vanterpool is FTA’s Acting Administrator, assuming that role on February 24, 2024. Before that, she had served as Deputy Administrator since May 2022. She first joined FTA as Senior Advisor in August 2021. As Acting Administrator...