Ind. Code § 4-29-3-3

Sec. 3. The governor is responsible for negotiating and executing a tribal-state compact on behalf of the state with an Indian tribe located within Indiana for the purpose of authorizing Class III gaming on Indian lands located within Indiana under 25 U.S.C. 2701 et seq. The governor's responsibilities under this section include the negotiation and execution of any amendment or modification to a tribal-state compact. However, the governor may not negotiate compact terms with an Indian tribe until the United States government formally takes land into trust as Indian lands for the Indian tribe.