Ind. Code § 4-23-7.1-25
In order that all public documents of the state of Indiana shall be preserved and made available for use of the citizens of the state, the state library is designated as the depository library for Indiana documents. The state library shall maintain a complete collection of all Indiana public documents. This collection shall be the official file of Indiana state documents. The state library shall establish a state document depository system by which copies of all public documents published by the state which are of general interest or use shall be deposited in designated depository libraries, and shall distribute to other libraries copies of those public documents published by the state which are of greatest interest or use and for which a more general distribution is appropriate.
IC 4-23-7.1-25