(E) For major medical expense coverage individual accident and health insurance policies, as defined by regulation of the department, the benefits are deemed reasonable in relation to the premium charged if the insurer has filed a loss ratio guarantee with the department. This guaranteed loss ratio must be equivalent to, or greater than, the most recent loss ratios detailed within the National Association of Insurance Commissioners' "Guidelines for Filing of Rates for Individual Health Insurance Forms." This loss ratio guarantee must be in writing and must contain at least the following:

1. (1) A recitation of the anticipated (target) loss ratio standards contained in the original actuarial memorandum filed with the policy form when it was originally approved.
2. (2) A guarantee that the actual South Carolina loss ratios for the calendar year in which the new rates take effect, and for each year thereafter until new rates are filed will meet or exceed the loss ratio standards referred to in item (1) above.
3. (3) A guarantee that the actual South Carolina loss ratio results for the year at issue will be independently audited at the insurer's expense. This audit must be done in the second quarter of the next year and the audited results must be reported to the department not later than the date for filing the applicable Accident and Health Policy Experience Exhibit.
4. (4) A guarantee that affected South Carolina policyholders will be issued a proportional refund (based on premium paid) of the amount necessary to bring the actual aggregate loss ratio up to the anticipated loss ratio standards referred to in item (1) above. The refund must be made to all South Carolina policyholders insured under the applicable policy form as of the last day of the year at issue if the refund would equal five dollars or more. The refund must include statutory interest from the end of the year at issue until the date of payment. Payments must be made during the third quarter of the next year.
5. (5) As used herein, the term "loss ratio" means the ratio of incurred losses to earned premium by number of years of policy duration, for all combined durations.
6. (6) The reference in item (1) of this subsection to the "anticipated (target) loss ratio standards contained in the original actuarial memorandum filed with the policy form when it was originally approved" may not be considered or construed as evidence of legislative intent that the use of, or adherence to, such "anticipated (target) loss ratio standards" is approved or disapproved in any application for a rate increase for any policy form approved prior to the effective date of these amendments to Section 38-71-310.