Indiana Code Title 6. Taxation § 6-1.1-6-20

Sec. 20. (a) If the owner of land which is classified as native forest land, a forest plantation, or wildlands wishes to have the land withdrawn from the classification, the owner shall have the county assessor of the county in which the land is situated assess the land.  The county auditor shall determine the taxes that are required under section 24 of this chapter.  The owner shall then file a withdrawal request in duplicate with the state forester on forms prescribed by the state forester.  The state forester shall withdraw the land from the classification on receipt of the withdrawal forms.

(b) If the owner of land that is classified as native forest land, a forest plantation, or wildlands wishes to have a part of the classified land removed, in addition to the requirements under subsection (a), the owner shall submit a revised application for the remaining eligible land.  The revised application assumes the effective date of the original application.