Ind. Code § 6-1.1-3-21

Sec. 21. Subject to the limitations in IC 6-1.1-35-9, assessment returns, lists, and any other documents and information related to the determination of personal property assessments shall be preserved as public records and open to public inspection. The township assessor, or the county assessor if there is no township assessor for the township, shall preserve and maintain these records.