1. An appointing authority may fill one or more vacancies for positions subject to this chapter pursuant to subsection 1 of section 36.030 by submitting to the director, as far in advance of the desired appointment date as possible, a requisition for the certification of eligible persons from an appropriate register. The requisition shall contain information as required by the director. The appointing authority, subject to conditions specified in the regulations, may also designate special requirements of domicile or the possession of special skills. If the director finds that such requirements would contribute substantially to effective performance of the duties involved, certification may be limited to persons on the register who meet such requirements.

2. Upon a request for certification, the director shall certify for selection the names of available eligibles.

3. When a position subject to this chapter pursuant to subsection 1 of section 36.030 is limited in duration, the director may certify any eligible who will accept employment under such conditions. A person appointed to a position under such conditions shall remain on the register and shall be eligible for certification to a permanent position until the register itself has expired.

4. Eligibles who do not respond within a reasonable period to a notice of certification may at the discretion of the director be dropped from the eligible register.