ABF Freight System knows the ABCs of freight transportation. The largest subsidiary of ArcBest Corporation, ABF Freight System offers national and regional less-than-truckload (LTL) transportation of general commodities, such as apparel, appliances, chemicals, food, furniture, metal, plastics, and textiles. LTL carriers generally combine freight from multiple shippers into a single truckload. The company operates a fleet of some 20,000 trailers and about 4,100 tractors from a network of some 250 terminals. It ships throughout the US and to Canada, Mexico, Guam, and Puerto Rico. Beyond its core LTL business, ABF is expanding with end-to-end supply chain management services.