C.R.S. § 30-20-1416

(1) End users who use more than an amount set by the commission by rule of tire-derived product or whole waste tires used to generate energy or fuel shall, as specified by the commission by rule: (a) Register with the department; (b) Submit an annual report to the department; (c) Use only a registered hauler to haul waste tires; and (d) Maintain records, including the manifests required by section 30-20-1417 (2), relating to waste tires. (2) The department may issue a waiver relating to any requirement of this section.