Indiana Code Title 5. State and Local Administration § 5-10.4-8-17

Sec. 17. (a) If a member of the plan separates from employment with the member's employer and later returns to employment in a position covered by the plan:

(b) An individual who elected under section 6 of this chapter to become a member of the plan resumes membership in the plan upon the individual's return to employment covered by the plan.

(c) An individual who did not elect to become a member of the plan resumes membership in the fund.

(d) An individual who returns to employment in a position covered by the plan having had an opportunity to make an election under section 6 of this chapter during an earlier period of employment is not entitled to a second opportunity to make an election under section 6 of this chapter.