Colo. Rev. Stat. § 10-3-902
The purpose of this part 9 is to subject certain persons and insurers to the jurisdiction of the commissioner, of proceedings before the commissioner, and of the courts of this state in suits. The general assembly declares that it is a subject of concern that many residents of this state hold policies of insurance issued by persons and insurers not authorized to do insurance business in this state, thus presenting to such residents the often insuperable obstacle of asserting their legal rights under such policies in forums foreign to them under laws and rules of practice with which they are not familiar and are deprived of the benefit of Colorado laws regulating insurance. The general assembly declares that it is also concerned with the protection of residents of this state against acts by persons and insurers not authorized to do an insurance business in this state by the maintenance of fair and honest insurance markets; by protecting the premium tax revenues of this state; by protecting authorized persons and insurers, which are subject to strict regulation, from unfair competition by unauthorized persons and insurers; and by protecting against the evasion of the insurance regulatory laws of this state. In furtherance of such state interest, the general assembly in this part 9 exercises its power to protect residents of this state and to define what constitutes transacting insurance business in this state.
C.R.S. § 10-3-902