(a)
(1) Any insurance policy terminating by its terms at a specified expiration date and not otherwise renewable may be renewed or extended at the option of the insurer upon a currently authorized policy form and at the premium rate then required for that type of policy, for a specific additional period or periods by certificate or by endorsement of the policy or by electronic certificate or electronic endorsement properly executed and without requiring the issuance of a new policy.
(2) The insurer shall retain the electronic transmittal and a copy of the certificate or endorsement as a part of the insurer's records.
(b) By reasonable rules or by order the Insurance Commissioner may deny the use of such certificates for renewal of such types of policies or in such circumstances as may be necessary or advisable to protect insureds who may otherwise hold forms of policies which no longer contain all of the benefits or conditions applicable under similar policies currently issued by the same insurer.
(c) The provisions of this section shall not apply to policies issued for large commercial risks.