(a) If an insurer uses the services of an administrator, the insurer is responsible for determining the benefits, premium rates, reimbursement procedures, and claims payment procedures applicable to the coverage and for securing reinsurance, if any. The insurer shall provide a copy of the written requirements relating to those matters to the administrator. The responsibilities of the administrator as to any of those matters must be set forth in the written agreement between the administrator and the insurer.
(b) An insurer shall ensure competent administration of its programs.

(c) If an administrator administers benefits for more than 100 certificate holders, injured employees, plan participants, or policyholders on behalf of an insurer, the insurer shall, at least semiannually, conduct a review of the operations of the administrator. At least biennially, the insurer shall conduct an on-site audit of the operations of the administrator.