Cal. Ins. Code § 10273

The term “noncancelable policy” or “noncancelable and guaranteed renewable policy” as used in this chapter means a policy which the insured has the right to continue in force subject to its terms by the timely payment of premiums in the amount originally set forth in the policy (a) until at least age 50, or (b) in the case of a policy issued after age 44, for at least five years from its date of issue, during which period the insurer has no right to make unilaterally any change in any provision of the policy while the policy is in force. Such a policy may use any of the provisions in Section 10291.6, 10350.2, 10350.4 or 10369.7, which may be used in noncancelable policies.