Ind. Code § 5-9-4-9
(b) Whenever the person or entity that receives the written notice under section 7(a) or 7(c) of this chapter does not have the power to fill a vacancy created by a resignation from the office the officeholder holds, the person or entity shall, not later than seventy-two (72) hours after receipt of the officeholder's notice, give written notice of the need for a temporary appointment during the officeholder's leave of absence to the person or entity who has the power to:
(2) call a caucus under IC 3-13-11 for the purpose of filling a vacancy;
created by a resignation from the office the officeholder holds.
As added by P.L.79-2004, SEC.1.