Ind. Code § 8-1-28-11
(a) If the commission issues an order approving an environmental compliance plan submitted by a public utility under this chapter, the commission shall, absent fraud, concealment, gross mismanagement, or inadequate quality control, allow the public utility to do the following:
(1) If a public utility is allowed by law to earn a return on the public utility's investment, the public utility may add to the fair value of the public utility's property the fair value of a completed capital project, or part of a capital project, that:
(A) is constructed and consists of:
(B) is part of the environmental compliance plan approved by the commission;
up to the amount approved by the commission under section 7(2) or 12 of this chapter, whichever is applicable.
As added by P.L.76-1991, SEC.2.