S.C. Code Ann. § 38-73-935

No rate filing for private passenger automobile insurance may include or be based upon actual or projected loss or expense data which includes payments made on policies, wherein the amount of the settlement, judgment, or other payment by the insurer was in excess of the policy limits, exclusive of interest and costs. No rate filing for private passenger automobile insurance may include or be based upon actual or projected loss or expense data which includes payments made as a result of the insurer's tortious breach of it's duty of good faith and fair dealing.