The following positions and administrations set forth in this chapter shall be exempt from Chapter 59 of this title:

(1) Secretary of the Department of Transportation;

(2) Director of the Transportation Authority;

(3) Director of the Division of Highways;

(4) Director of the Office of Administration;

(5) Head of the Office of Financial Management and Budget;

(6) Chiefs of such other divisions or administrations as may be established by the Secretary with the written approval of the Governor; and

(7) Head of the Office of External Affairs.

(8) Director of Division of Pre-Construction.

(9) Director of Motor Vehicles.

60 Del. Laws, c. 503, § ?7; 62 Del. Laws, c. 379, § ?3; 67 Del. Laws, c. 46, § ?57(e); 69 Del. Laws, c. 64, § ?244; 72 Del. Laws, c. 395, § ?309; 74 Del. Laws, c. 110, § ?133;