Section 10-4-602 - Basis for cancellation(1) A notice of cancellation of a policy shall be valid only if it is based on one or more of the following reasons:(a) Nonpayment of premium; or(b) The driver's license or motor vehicle registration of either the named insured or any operator either residing in the insured's household or who customarily operates an automobile insured under the policy has been under suspension or revocation during the policy period or, if the policy is a renewal, during its policy period or the one hundred eighty days immediately preceding its effective date; or(c) An applicant knowingly made a false statement on the application for insurance; or(d) An insured knowingly and willfully made a false material statement on a claim submitted under the policy.(2) This section shall not apply to any policy or coverage which has been in effect less than sixty days at the time notice of cancellation is mailed or delivered by the insurer, unless it is a renewal policy.(3) This section shall not apply to nonrenewal of a policy.L. 69: p. 550, § 2. C.R.S. 1963: § 72-30-2. L. 94: (1)(c) amended and (1)(d) added, p. 328, § 1, effective July 1.