Colo. Rev. Stat. § 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:
Source: L. 2014: Entire part added, (HB 14-1352), ch. 351, p. 1592, § 1, effective July 1.