Indiana Code Title 3. Elections § 3-10-11-4

Sec. 4. (a) Notwithstanding other provisions of this title concerning residency requirements for voting, but subject to subsection (b), a person described in section 2 of this chapter may vote in the precinct of the person's former residence by executing an affidavit described in this chapter.

(b) A person who changes residence from a location:

less than thirty (30) days before a municipal primary election, municipal election, or special election held only within the municipality may not vote in the municipal primary election, municipal election, or special election held only within the municipality in the precinct of the person's former residence.

(c) This subsection applies to a county that has adopted an order under IC 3-7-29-6 or is a vote center county under IC 3-11-18.1-1.  A voter may make a written affirmation under this section on election day using the affidavit described by this section.  If the voter makes an oral affirmation, the poll clerks shall reduce the substance of the affirmation to writing using the affidavit described by this section and initial the affirmation.