1. (a) A regulated entity shall install and operate properly sized grease control equipment to prevent the discharge of wastewater containing fats, oils, or grease in concentrations that cause or contribute to:

   1. (1) blockages;
   2. (2) overflows; or

   3. (3) interference;

      in a sewer system.

2. (b) The regulated entity's grease control equipment shall be:

   1. (1) designed; or

   2. (2) approved;

      by a licensed professional engineer under IC 25-31 or a professional architect under IC 25-4 .

3. (c) Subject to subsection (d), a regulated entity that demonstrates through operational characteristics, inspection, and sampling that the regulated entity does not generate fats, oils, or grease in quantities requiring interception is:

   1. (1) exempt from the requirements of this chapter; and
   2. (2) not required to install grease control equipment.
4. (d) If a regulated entity's characteristics change and the regulated entity begins to generate fats, oils, or grease in quantities requiring interception, the regulated entity shall install grease control equipment.

As added by P.L.95-2026, SEC.1.