C.R.S. § 42-7-501

(1) Any person in whose name more than twenty-five motor vehicles are registered may qualify as a self-insurer by obtaining a certificate of self-insurance issued by the commissioner of insurance. (2) The commissioner of insurance may, in his or her discretion, upon the application of such person, issue a certificate of self-insurance when the commissioner of insurance is satisfied that such person is possessed and will continue to be possessed of ability to pay all judgments that may be obtained against such person. Upon not less than five days’ notice and a hearing pursuant to such notice, the commissioner of insurance may, upon reasonable grounds, cancel a certificate of self-insurance. Failure to pay any judgment within thirty days after such judgment has become final shall constitute a reasonable ground for the cancellation of a certificate of self-insurance.