Department of Transportation

The Maryland Department of Transportation is responsible for delivering safe, efficient, sustainable and equitable transportation solutions to connect our customers to life's opportunities. MDOT is comprised of five modes and one authority: State Highway Administration, Maryland Transit Administration, Maryland Motor Vehicle Administration, Maryland Port Administration, Maryland Aviation Administration and the Maryland Transportation Authority. This unique approach provides the state’s leadership with the ability to develop a coordinated, balanced and multi-modal approach to transportation.

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Paul J. Wiedefeld


Paul J. Wiedefeld was appointed Secretary of the Maryland Department of Transportation by Governor Wes Moore for his commitment to public service and proven leadership to transform MDOT’s top class, multi-modal transportation system and elevate Maryland communities. He was sworn in March 2, 2023.

Secretary Wiedefeld oversees MDOT’s six agencies and guides operation and maintenance of state highways, bridges, tollways, transit systems, motor vehicle licensing, Baltimore/Washington International Thurgood Marshall Airport and the Helen Delich Bentley Port of Baltimore. He chairs the Maryland Transportation Authority Board, the Maryland Port Commission and the Maryland Aviation Commission; and is a member of the Washington Metropolitan Area Transit Authority (WMATA) Board.

Through more than 40 years in the public and private sector, Secretary Wiedefeld has worked extensively to build consensus on transportation initiatives that serve communities. A Baltimore native, he previously was CEO of BWI Thurgood Marshall Airport and administrator of the Maryland Transit Administration.

Secretary Wiedefeld served as WMATA General Manager/CEO from 2015 to 2022, overseeing one of the nation’s largest transit systems with 12,000 employees, an annual $2.2 billion operating budget and a $2.5 billion capital program. In the private sector, he was vice president with the international firm HDR and director of its US Northeast Transportation Business.

He has a Bachelor’s degree in Political Science from Towson University and a Master’s degree in City and Regional Planning from Rutgers University.