Indiana Code Title 8. Utilities and Transportation § 8-1-2-46

Sec. 46. (a) The commission shall provide for a comprehensive classification of such service for each public utility and such classification may take into account the quantity used, the time when used, the purpose for which used and other reasonable consideration.  Each public utility is required to conform its schedules of rates, tolls, and charges to such classification.

(b) As used in this section, “water or wastewater utility” means:

that provides water or wastewater service to the public.

(c) Upon request by a water or wastewater utility in a general rate case, the commission may allow, but may not require, a water or wastewater utility to establish a customer assistance program that:

A customer assistance program established under this subsection that affects rates and charges for service is not discriminatory for purposes of this chapter or any other law regulating rates and charges for service.  In considering whether to approve a water or wastewater utility's proposed customer assistance program, the commission shall determine that a customer assistance program established under this subsection furthers the interests set forth in section 0.5 of this chapter and is in the public interest.

(d) The commission shall adopt rules under IC 4-22-2 to implement this section.