When a complaint alleging age discrimination concerns a position in public employment, the commission's staff shall take the following steps before investigating and ascertaining the facts of the alleged act of discrimination:

(1) The staff shall determine whether the respondent is acting under a law or ordinance fixing or authorizing the establishment of age limits.

(2) If the staff finds that the respondent is not acting under a law or ordinance fixing or authorizing the establishment of age limits, the commission's staff shall proceed to process the complaint in the same manner as other complaints are processed, and in its findings the staff shall include a finding that the employer was not acting under a law or ordinance fixing or authorizing age limits.

(3) If the staff finds that the respondent had acted under a law or ordinance fixing or authorizing age limits it shall so report at the next commission meeting.