Indiana Code Title 13. Environment § 13-11-2-197.5

Sec. 197.5. “Secondary material”, for purposes of IC 13-22-11.5, means a solid, liquid, or contained gaseous form of a byproduct, spent material, sludge, discarded commercial chemical product, or scrap metal that may be incorporated into a manufacturing or an industrial process, except reclamation, to make a product.