Sec. 38. (a) "Composting", for purposes of IC 13-20-9 and IC 13-20-10, means the biological treatment process by which microorganisms decompose the organic component of vegetative matter and other types of organic material.
(b) "Composting", for purposes of IC 13-21, means an aerobic degradation process by which plant and other organic wastes decompose under controlled conditions to produce a usable product.