Colorado Revised Statutes Title 38. Property Real and Personal § 38-22-130. Payment of claims by surety

(1) Subcontractors, materialmen, mechanics, and others who have claims aggregating two thousand dollars or less each on construction projects for the improvement of real property as described in section 38-22-101(1) for which a bond was executed pursuant to section 38-22-129 shall serve upon the principal contractor and his surety an affidavit, supported by all reasonably available documentary evidence, that a claimant has furnished labor or materials used or performed in the prosecution of the work on such project, that he has been unpaid therefor, and the amount of such claim. If after forty-five days such affidavit remains uncontroverted, such surety shall pay to such claimant forthwith the full value of his claim.

(2) Service of such affidavit may be accomplished by certified or registered mail, by personal delivery to such person, or by leaving a copy at his residence or at his place of business with some person in charge.