(A) No automobile insurer or representative of any automobile insurer may wilfully include in a private passenger automobile insurance rate filing any expense or loss which was generated in whole or part by either another line of insurance or general expenses or overhead applicable to all lines, unless the insurer has allocated properly the expense or loss among all its lines of insurance. The insurer’s compliance with generally accepted accounting and actuarial principles constitutes a complete defense to an action brought under this section. No insurer may adopt a different method or usage of allocating or treating expenses or losses for purposes of rate filings in South Carolina from that which it uses in other states for similar lines of insurance, unless different treatment is required by statute or regulation.

(B) The director or his designee, at least once every four years, shall make or cause to be made, for each insurer which writes more than one percent of the private passenger market in South Carolina, an examination of each insurer’s books, records, and accounts to ensure that the expenses are being allocated or treated properly. In lieu of an independent examination, the director or his designee may request a sworn affidavit from the insurer’s controller, accountant, or actuary that the companies’ expenses are being allocated and treated properly and that private passenger automobile insureds are not being charged an inequitable or unfair share of the insurer’s expenses, acquisition costs, overhead, or other expenses. The director or his designee shall survey for the companies at appropriate intervals a comparison of the acquisition cost of private passenger business in South Carolina versus other similar states in which the companies do business.

(C) An insurer violating the provisions of this section is subject to a civil penalty of not less than twenty-five thousand dollars. A person who violates the provisions of this section is guilty of a felony and, upon conviction, must be imprisoned for not more than ten years or fined not less than ten thousand dollars, or both.