CO Const., Article XVIII, Section 3

Arbitration laws. It shall be the duty of the general assembly to pass such laws as may be necessary and proper to decide differences by arbitrators, to be appointed by mutual agreement of the parties to any controversy who may choose that mode of adjustment. The powers and duties of such arbitrators shall be as prescribed by law. Source: Entire article added, effective August 1, 1876, see L. 1877, p. 73.