Colorado Revised Statutes Title 38. Property Real and Personal § 38-26-106. Contractor executes bond--applicability

(1) Before entering upon the performance of any work included in the contract, a contractor shall duly execute, deliver to, and file with the board, officer, body, or person by whom the contract was awarded a good and sufficient bond or other acceptable surety approved by the contracting board, officer, body, or person, in a penal sum not less than one-half of the total amount payable under the terms of the contract; except that, for a public works contract having a total value of five hundred million dollars or more, a bond or other acceptable surety, including but not limited to a letter of credit, may be issued in a penal sum not less than one-half of the maximum amount payable under the terms of the contract in any calendar year in which the contract is performed. The contracting board, office, body, or person shall ensure that the contract requires that a bond or other acceptable surety, including but not limited to a letter of credit, be filed and current for the duration of the contract.

(2) A bond or other acceptable surety shall be duly executed by a qualified corporate surety or other qualified financial institution, conditioned upon the faithful performance of the contract, and, in addition, shall provide that, if the contractor or his or her subcontractor fails to duly pay for any labor, materials, team hire, sustenance, provisions, provender, or other supplies used or consumed by such contractor or his or her subcontractor in performance of the work contracted to be done or fails to pay any person who supplies laborers, rental machinery, tools, or equipment, all amounts due as the result of the use of such laborers, machinery, tools, or equipment, in the prosecution of the work, the surety or other qualified financial institution will pay the same in an amount not exceeding the sum specified in the bond or other acceptable surety together with interest at the rate of eight percent per annum. Unless a bond or other acceptable surety is executed, delivered, and filed, no claim in favor of the contractor arising under the contract shall be audited, allowed, or paid. A certified or cashier's check or a bank money order made payable to the treasurer of the state of Colorado or to the treasurer or other officer designated by the governing body of the contracting local government may be accepted in lieu of a bond or other acceptable surety.

(3) This section applies to: