Colorado Revised Statutes Title 13. Courts and Court Procedure § 13-21-403. Presumptions

(1) In any product liability action, it shall be rebuttably presumed that the product which caused the injury, death, or property damage was not defective and that the manufacturer or seller thereof was not negligent if the product:

(2) In like manner, noncompliance with a government code, standard, or regulation existing and in effect at the time of sale of the product by the manufacturer which contributed to the claim or injury shall create a rebuttable presumption that the product was defective or negligently manufactured.

(3) Ten years after a product is first sold for use or consumption, it shall be rebuttably presumed that the product was not defective and that the manufacturer or seller thereof was not negligent and that all warnings and instructions were proper and adequate.

(4) In a product liability action in which the court determines by a preponderance of the evidence that the necessary facts giving rise to a presumption have been established, the court shall instruct the jury concerning the presumption.