Subject to the provisions of the Charter, the rules of the department and the instruction of his or her board, the chief administrative officer of a department or bureau under the control and management of a board of commissioners, except the Police Department, shall:
(a) administer the affairs of the department or bureau as its chief administrative officer;
(b) appoint, discharge, suspend, or transfer the employees of the department or bureau, other than the secretary of the board and the chief accounting employee of the department, all subject to the civil service provisions of the Charter;
(c) issue instructions to employees, in the line of their duties, all subject to the civil service provisions of the Charter;
(d) expend the funds of the department or bureau in accordance with the provisions of the budget appropriations or of appropriations made after adoption of the budget;
(e) recommend to the board of the department prior to the beginning of each fiscal year an annual departmental budget covering the anticipated revenues and expenditures of the department or bureau, conforming so far as practicable to the forms and dates provided in Article III in relation to the general City budget;
(f) certify all expenditures of the department or bureau to the chief accounting employee;
(g) file with the board and the Mayor a written report on the work of the department or bureau on a regular basis and as requested by the Mayor or board; and
(h) exercise any further powers in the administration of the department as may be conferred upon him or her by the board of the department.