Indiana Code Title 8. Utilities and Transportation § 8-23-7-27

Sec. 27. (a) Before an authorized employee or representative of the department enters upon, over, or under any land or water under section 26 of this chapter, the occupant of the land or water shall be notified in writing by first class United States mail of the entry not later than five (5) days before the date of entry.  The employee or representative of the department shall present written identification or authorization to the occupant of the land or water before entering the land or water.

(b) At the same time and in the same manner as the notice required under subsection (a), the department shall notify the occupant and the record owner of the land or property of the following: