All compensated positions in the service of the Municipality shall be in the classified service and shall be appointed pursuant to competitive examinations, except the following, which shall comprise the unclassified service of the Municipality:
(a) The Mayor, members of Council, and all other elected officials.
(b) The Clerk of Council and other employees of Council.
(c) The Director of Finance.
(d) The Law Director, assistants to the Law Director, and special legal counsel.
(e) The Director of Public Service, the Director of Public Safety, the Director of Taxation, and executive assistants to these Directors.
(f) All heads of Departments, except the Division of Police.
(g) Professional engineers employed by the Municipality.
(h) Members of boards and commissions established by Charter or by ordinance of Council.
(i) Members of the Auxiliary Police Unit and the Police Cadet Corps.
(j) The secretary of each board and commission established by this Charter or by ordinance, provided that if such secretary holds other employment within the classified service of the Municipality, this section shall not exempt such person from the requirement of competitive examination to hold such other employment.
(k) Persons of exceptional professional or scientific qualifications engaged as consultants.
(l) Unskilled laborers as defined and authorized by the Civil Service Commission, except that the Commission, in its rule, shall require an applicant in the labor class to furnish such evidence, or take such test, as the Commission deems proper with respect to age, residence, physical condition, ability to labor, honesty, sobriety, industry, capacity, and experience in the work for which he applies. Laborers who fulfill the requirements shall be placed on the eligible list for the kind of employment sought, and preference shall be given in employment in accordance with the rating received from such evidence or in such test.
(m) Temporary employees who are not employed for more than one hundred eighty (180) days continuously, or for more than one hundred eighty (180) days in one year.
(n) One personal secretary to the Mayor, Director of Public Safety, Director of Public Service, and Director of Taxation, and one deputy or clerk to each of the Mayor, Director of Finance, the Director of Public Service, Director of Public Safety, and Director of Taxation; provided, however, that it shall be necessary for such positions to have been created by Council.