Ind. Code § 4-29.5-4-22

Sec. 22. In furtherance of this chapter, the Band shall notify the State immediately in writing if the Band's Certificate of Self-Regulation is revoked. The Band shall also notify the State: (i) within three (3) business days of any material changes in circumstances that create a duty to advise the NIGC under 25 C.F.R. 518.11, and (ii) within one (1) business day upon receipt of a notice from the NIGC advising the Band of the NIGC's intent to revoke the Band's Certificate of Self-Regulation.