2015 ORS § 742.564¹
Manner of giving cancellation notice
(1) No notice of cancellation of a policy to which ORS 742.562 (Grounds for cancellation of policies) applies shall be effective unless mailed or delivered by the insurer to the named insured at least 30 days prior to the effective date of cancellation and accompanied by a statement of the reason or reasons for cancellation, provided, however, that where cancellation is for nonpayment of premium at least 10 days notice of cancellation accompanied by the reason therefor shall be given.
(2) This section shall not apply to nonrenewal. [Formerly 743.910]