Colo. Rev. Stat. § 40-2-119
(1) The commission shall by rule or regulation establish standards and procedures to be used in determining whether certain transportation provided by a rail carrier in this state should be exempted, in whole or in part, from one or more provisions of this title. Such rules and regulations shall provide for such exemption when the commission finds that:
Source: L. 84: Entire section added, p. 1036, § 1, effective July 1.