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

(1) Secretary of Labor;

(2) Director of Employment and Training;

(3) Director of Industrial Affairs;

(4) Director of Unemployment Insurance;

(5) Director of Vocational Rehabilitation;

(6) Chief of the Office of Occupational and Labor Market Information; and

(7) Executive Director of the Workforce Investment Board.

29 Del. C. 1953, § ?8516; 57 Del. Laws, c. 571, § ?1; 68 Del. Laws, c. 290, § ?203; 70 Del. Laws, c. 527, § ?1; 72 Del. Laws, c. 392, § ?4;