Indiana Code Title 8. Utilities and Transportation § 8-1-27-18

Sec. 18. (a) If the commission, after an investigation commenced upon its own initiative or upon a petition of the public utility or a class of persons satisfying the standing requirements of IC 8-1-2-54 (including the office of the utility consumer counselor), finds that substantial changes:

the commission may commence a review of the approval of the environmental compliance plan.

(b) If the commission finds that all or part of an environmental compliance plan no longer meets the requirements of section 8 of this chapter, the commission may, consistent with sections 8 and 10 of this chapter, issue an order:

(c) If the commission approves modifications to an environmental compliance plan under subsection (b), the modified environmental compliance plan shall constitute the public utility's approved environmental compliance plan for purposes of this chapter.