C.R.S. § 24-3-102

(1) Except as otherwise specifically provided and subject to applicable provisions of the constitution, statutes, and rules of civil procedure of the state of Colorado, every agency is authorized: (a) To institute and appear as a party in original actions in the supreme court of the state of Colorado and the United States supreme court in all causes, matters, and proceedings involving the functions and duties of such agency where such courts have original jurisdiction; (b) To prosecute appeals in all cases, causes, matters, and proceedings in which such agency is a party in the courts of this state and its subdivisions, federal courts, and courts in other jurisdictions.