(a) If an insurer utilizes the services of an administrator, the insurer shall be responsible for determining the benefits, premium rates, underwriting criteria, and claims payment procedures applicable to the coverage and for securing reinsurance, if any. The rules pertaining to these matters must be provided, in writing, by the insurer to the administrator. The responsibilities of the administrator as to any of these matters shall be set forth in the written agreement between the administrator and the insurer.
(b) It is the sole responsibility of the insurer to provide for competent administration of its programs.
(c) In cases where an administrator administers benefits for more than one hundred (100) certificate holders on behalf of an insurer, the insurer shall, at least semi-annually, conduct a review of the operations of the administrator.