Ind. Code § 27-7-2-1.2

Sec. 1.2. This chapter applies to all persons, firms, partnerships, corporations, associations, and systems and to associations operating as Lloyds, interinsurers, or individual underwriters authorized on or after July 1, 1935, to transact the business of making worker's compensation insurance in Indiana. All domestic, foreign, and alien companies authorized to issue worker's compensation insurance policies in Indiana are subject to this chapter.