Indiana Code Title 3. Elections § 3-7-43-3

Sec. 3.  (a) A request from a voter under this chapter may be made when the voter registers in another county in Indiana or in a jurisdiction outside of Indiana.  A registration form under this section must be signed by the voter or, if not signed by the voter, after the NVRA official notifies the county voter registration office that the jurisdiction where the voter has registered has provided the election division with written notice of the voter's registration in the jurisdiction and request for cancellation of previous registrations.

(b) The election division shall forward a copy of the notice to the appropriate county voter registration office.