When any vacancy occurs in the classified service, the director, subject to the approval of the personnel board, may direct the filling of such vacancy by appointment, promotion, reappointment, transfer, or demotion, where practical.

(1) APPOINTMENT: When it is necessary to fill a vacancy by appointment, the appointing authority shall submit to the director a personnel requisition containing a statement of the title of the position and the desired qualifications of the person to be appointed, and request the director to certify to him or her the names of persons eligible for appointment to the position. The director shall certify to the appointing authority the names of three ranking eligibles from the most appropriate register, and if more than one vacancy is to be filled, the name of one additional eligible for each additional vacancy, or if agreeable to the appointing authority, all the names on the register, if there is less than the above-required number. If it is impossible to locate any of the persons so certified or if any of the certified persons decline to accept the position, and there are by reason thereof less than the above required eligibles, the appointing authority may request that additional names be certified until the proper number of eligible persons have been certified. The appointing authority, within 30 days, shall appoint one of those whose names are certified to fill each vacancy. In the event the requested number of eligibles cannot be certified to the appointing authority, he or she may chose from the remaining certified names or may elect to make a provisional appointment as provided in this part. In the event there does not exist an employment register, which the director deems appropriate for the class in which the position is established, he or she shall prepare such a register within a reasonable time after receipt of the request of the appointing authority that eligibles be certified. Whenever an eligible has been certified to and objected by the appointing authority as many as three times, the director may remove the name of such person from the employment register.

(2) PROMOTION: Vacancies other than entry level positions shall be filled by promotion insofar as practicable, from the appropriate promotional register. The certification of individuals for promotion shall be the same as provided for in subdivision (1), with the exception that individuals certified to the appointing authority as many as three times shall not be removed from the promotional register.