OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has upgraded the Financial Strength Rating to B++ (Good) from B+ (Good) and the Long-Term Issuer Credit Rating to “bbb” from “bbb-” of National Independent Truckers Insurance Company, A RRG (NITIC) (Charleston, SC). The outlook of these Credit Ratings (ratings) has been revised to stable from positive. The rating upgrades are based on the company’s ongoing history of underwriting profit in the recently challenging commercial auto liability line of busin
