Indiana Code Title 3. Elections § 3-13-1-10

Sec. 10. (a) To be eligible to participate in a caucus called under section 4, 5, or 6 of this chapter, an elected precinct committeeman must be entitled to vote for the office for which a candidate is to be selected.  An elected precinct committeeman is eligible to participate in a caucus called under this chapter, regardless of when the ballot vacancy occurred.

(b) An appointed precinct committeeman is eligible to participate in a caucus called under section 4, 5, or 6 of this chapter if the precinct committeeman was a committeeman thirty (30) days before the vacancy occurred.

(c) For purposes of a candidate vacancy resulting from the failure of a candidate to be nominated at a primary at which precinct committeemen were elected, an appointed precinct committeeman is eligible to serve if the committeeman has been reappointed following the primary in accordance with the rules of the committeeman's political party.