C.R.S. § 10-3-1303

As used in this part 13, unless the context otherwise requires: (1) “Insurer” means every person engaged as principal, indemnitor, surety, or contractor in the business of making contracts of insurance, and any person authorized to represent an insurer with respect to a claim. (2) “Nonoriginal equipment replacement crash part” means a replacement crash part which is not supplied by the manufacturer of the motor vehicle on which the part is used. (3) “Replacement crash part” means a replacement for any of the nonmechanical sheet metal or plastic parts which generally constitute the exterior of a motor vehicle, including inner and outer panels.