Oregon Revised Statutes Insurance § 743.495

(a) The unqualified terms “noncancelable” or “noncancelable and guaranteed renewable” may be used only in a policy which the insured has the right to continue in force for life by the timely payment of premiums set forth in the policy, 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.

(b) The unqualified term “guaranteed renewable,” except as provided in paragraph (a) of this subsection, may be used only in a policy which the insured has the right to continue in force for life by the timely payment of premiums, 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, except that the insurer may make changes in premium rates by classes.