A. The department head shall notify the commission of any vacancy in a classified civil service position. Separate notice shall be given of each position to be filled, except that one notification shall be sufficient where more than one position of the same grade is to be filled.

B. Upon such notice for an entry level position, the commission shall certify to the department head the names and addresses, together with a notation of veterans preference if any, of the first five candidates on the list or register of eligible or the top twenty-five (25) percent, whichever is greater, for the position to be filled. If there are less than five eligible candidates on the register, the lesser number shall be certified. In the event more than one position of the same grade is to be filled, the commission may certify a lesser number than five names for each position and may certify a single list from which the appointments shall be made. The commission may limit the number of times the same person shall be certified.

C. Upon such notice for a position above the entry level, the commission shall certify to the department head the names and addresses, together with a notation of veterans preference if any, of the first three candidates on the list or register of eligible for the position to be filled. If there are less than three eligible candidates on the register, the lesser number shall be certified. In the event more than one position of the same grade is to be filled, the commission may certify a lesser number than three names for each position and may certify a single list from which the appointments shall be made. The commission may limit the number of times the same person shall be certified.

D. The department head shall be the appointing official and shall make the appointment from the name or names certified to him or her by the commission. The department head may require each candidate to appear before him for interview and may inspect the candidate's examination papers. Appointments may be made without regard to the order of sequence of certification, subject to any preferences established by ordinance.

E. All appointees shall be on probation for a period of one year from the date of appointment and may be discharged at any time during such probation as provided in Section 2.48.340. If any appointee has not been discharged, his or her appointment shall automatically become permanent at the expiration of the probationary period.