Iowa Code Title XIII. Commerce [Chs. 505-554D] § 518.23. Cancellation or nonrenewal of policies--notice

1. Cancellation by insured. A policy shall be canceled at any time at the request of the insured.

2. Cancellation by association.

3. Nonrenewal by association.A notice of intention not to renew is not effective unless mailed or delivered by the insurer to the named insured at least thirty days prior to the expiration date of the policy. If the reason does not accompany the notice of nonrenewal, the association, upon receipt of a timely request by the named insured, shall provide the reason for the nonrenewal in writing.

4. Notice. Service of notice under subsection 2 or 3 may be delivered in person or mailed to the insured at the insured's post office address as given in or upon the policy, or to such other address as the insured shall have given to the association in writing. A post office department certificate of mailing shall be deemed proof of receipt of such mailing. If in either case the cash payments exceed the amount properly chargeable, the excess shall be refunded to the insured.