(a) The following units are in the Department:
(1) Maryland Aviation Administration;
(2) Maryland Port Administration;
(3) Maryland Transit Administration;
(4) State Highway Administration;
(5) Motor Vehicle Administration;
(6) Board of Airport Zoning Appeals;
(7) State Roads Commission;
(8) Transportation Professional Services Selection Board; and
(9) Maryland Transportation Commission.
(b) The Department also includes any other unit that, in accordance with law, is declared to be in the Department.