Indiana Code Title 3. Elections § 3-7-36-5

Sec. 5. (a) This section does not apply to a voter who files a combined absentee registration form and absentee ballot request.

(b) When a county voter registration office receives an application for registration from an absent uniformed services voter or an overseas voter, the office shall promptly mail or deliver to the applicant the affidavit prescribed by this title for the registration of a voter.  The county voter registration office shall transmit the voter registration application to the applicant by electronic mail or fax if:

If the electronic mail address or the fax number provided by the voter does not permit the county voter registration office to send the voter an application not later than the end of the first business day after the county voter registration office receives the communication, the county voter registration office shall send the application to the voter by United States mail.

(c) When the properly executed and certified affidavit is returned to the voter registration office and approved under this article, the applicant becomes a registered voter in the precinct of residence.