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

(1) Secretary of Health and Social Services;

(2) Director of Public Health;

(3) Director of the Division of Substance Abuse and Mental Health;

(4) Director of Social Services;

(5) Chief of Business Administration and General Services;

(6) Chief of Planning, Research and Evaluation;

(7) Director of Developmental Disabilities Services;

(8) Director of Child Support Services;

(9) Director of the Division of Services for Aging and Adults with Physical Disabilities;

(10) Director of State Service Centers;

(11) Director of Long-Term Care Resident Protection; and

(12) Deputy Secretary of the Department of Health and Social Services.

29 Del. C. 1953, § ?7924; 57 Del. Laws, c. 301, § ?1; 57 Del. Laws, c. 551, § ?1; 59 Del. Laws, c. 136, § ?3; 60 Del. Laws, c. 251, § ?4; 64 Del. Laws, c. 467, §§ ?4, 5; 65 Del. Laws, c. 89, § ?3; 69 Del. Laws, c. 345, § ?6; 70 Del. Laws, c. 150, § ?7; 73 Del. Laws, c. 41, § ?1; 73 Del. Laws, c. 68, § ?5; 73 Del. Laws, c. 97, § ?7[6]; 79 Del. Laws, c. 265, § ?4; 80 Del. Laws, c. 234, § ?27;