Indiana Code Title 36. Local Government § 36-8-3.5-13

Sec. 13. (a) Rules governing promotions must provide that the following factors be considered in rating a member of the department for a promotion:

The commission shall determine the weight to be given to each of the factors.  However, neither a member's length of service nor the score received on the oral interview may comprise more than twenty percent (20%) each of the rating.

(b) Promotions to a rank must be from the next lower rank.  In addition, the member being promoted must have served at the lower rank for a period determined by the commission.

(c) Only members who are qualified in rank and length of service may be given the competitive examinations and placed on an eligibility list.  The eligibility list for a position consists of members who have been placed on the list in order of their cumulative score on all rating factors.  The eligibility list shall be maintained for two (2) years from the date of certification, after which time the list shall be retired and a new list established.  The retired list shall be kept for five (5) years and then destroyed.