Maryland Department of Transportation
The Maryland Department of Transportation is an organization comprising five business units and one Authority:
- Maryland Transportation Authority
- Maryland Transit Administration
- Maryland Port Administration
- State Highway Administration
- Maryland Motor Vehicle Administration
- Maryland Aviation Administration
- 2019–present, Gregory I. Slater
- 2015–2019, Pete K. Rahn
- 2013–2015, James T. Smith Jr.
- 2012–2013, Darrell Mobley
- 2009–2012, Beverley K. Swaim-Staley
- 2007–2009, John D. Porcari
- 2003–2007, Robert L. Flanagan
- 1999–2003, John D. Porcari
- 1995–1998, David L. Winstead
- 1991–1994, O. James Lighthizer
- 1987–1991, Richard H. Trainor
- 1984–1987, William K. Hellmann
- 1981–1984, Lowell K. Bridwell
- 1979–1981, James J. O'Donnell
- 1977–1979, Herman K. Intemann
- 1970–1977, Harry R. Hughes
