Indiana Code Title 27. Insurance § 27-1-22-7

Sec. 7. (a) When a filing or deviation involving a rate adjustment depends upon a change in the relationship between the proposed rates and the anticipated production expense portion thereof from the relationship anticipated under any rates previously filed and currently in effect for the company or rating organization involved, such filing or deviation shall be subject to the provisions of subsection (b).

(b) Each filing or deviation subject to this section shall be on file for a waiting period of twenty (20) days before it becomes effective.  If within such waiting period or after hearing as provided in this section, the commissioner finds that the filing or deviation does not meet the requirements of this chapter, the commissioner shall send to the insurer or rating organization which made the filing or to the insurer which filed the deviation written notice of disapproval specifying in the notice in what respects the filing or deviation fails to meet the requirements of this chapter and stating that the same shall not become effective.  Such filing or deviation shall be deemed to meet the requirements of this act unless disapproved:

Upon the commissioner's own motion, or upon timely written request by any insurance producer or broker of the company or companies to which such filing or deviation is applicable, if such request is in good faith and states reasonable grounds, the commissioner may at any time within the waiting period call a hearing upon not less than ten (10) nor more than fifteen (15) days written notice to the company or rating organization making the filing or to the company filing the deviation.  Within ten (10) days after the commencement of such hearing, the commissioner shall in writing either approve such filing or deviation or shall disapprove the same as provided in this section.