A.(1) The officers of the department shall be the secretary, undersecretary, deputy secretary, assistant secretary of project delivery, commissioner of multimodal commerce, and assistant secretary of operations, each of whom shall be selected and shall perform functions as provided in this Title.
(2) The secretary, undersecretary, deputy secretary, assistant secretary of project delivery, assistant secretary of operations, executive director of the Offshore Terminal Authority, commissioner of multimodal commerce, and such other positions which may be authorized by the State Civil Service Commission or the state constitution shall be unclassified positions in the Department of Transportation and Development. All other positions in the department may be in the classified state service. The secretary shall fill such positions as in his opinion and judgment are necessary to the operation of the department in accordance with applicable rules and regulations of the State Civil Service Commission and applicable law.
B. No person serving as a secretary, undersecretary, deputy secretary, assistant secretary of project delivery, assistant secretary of operations, commissioner of multimodal commerce, or in any other office in the department shall receive any additional salary from the state other than that salary which he receives by virtue of serving in any one of such offices. Any statewide elected official appointed to serve as a secretary or deputy secretary shall not receive any additional salary from the state other than that salary which he receives as a statewide elected official.
C. Notwithstanding any provision herein to the contrary, subject to approval of the governor, any person, including any statewide elected official, serving or appointed to serve as a secretary or deputy secretary may receive additional compensation for part-time services rendered as an instructor in postsecondary educational institutions, or as a member of the National Guard.