State Highway Administration
State Geological & Economic Survey, 1898-1904
State Geological & Economic Survey, Division of Highways, 1904-1908
State Roads Commission, 1908-70
Department of Transportation, State Highway Administration, 1970-
Motor Vehicle Administration
Secretary of State, 1904-10
Office of the Commissioner of Motor Vehicles, 1910-43
Department of Motor Vehicles, 1943-70
Department of Transportation, Motor Vehicle Administration, 1970-
Maryland Aviation Administration
State Aviation Commission, 1929-70
Department of Transportation, State Aviation Administration, 1970-89
Department of Transportation, Maryland Aviation Administration, 1989-94
Department of Transportation, Maryland Aviation Commission, Maryland Aviation
Administration, 1994-
Maryland Port Administration
Maryland Port Authority, 1956-70
Department of Transportation, Maryland Port Administration, 1970-88
Department of Transportation, Maryland Port Commission, Maryland Port Administration,
1988-
Mass Transit Administration
Metropolitan Transit Authority, 1961-71
Department of Transportation, Mass Transit Administration, 1971-
Department of Transportation, State Railroad Administration, 1978-92
Department of Transportation, Mass Transit Administration, 1992-
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