Knight Transportation, Inc. (Knight) is a short to medium-haul truckload carrier of general commodities. The transportation services provided by the Company are primarily asset-based dry van truckload and temperature-controlled truckload carrier services, along with non-asset-based brokerage services. The Company operates through two business segments: truckload transportation (asset-based) segment and brokerage segment (non-asset-based). Through its asset-based and non-asset-based capabilities, Knight transports, or can arrange for the transportation of, general commodities for customers throughout the United States. The Company generally focuses its dry van and temperature-controlled operations on regional short-to-medium lengths of haul. As of December 31, 2008, Knight operated 35 asset-based service centers (consisting of 29 dry van and four temperature-controlled service centers) and 12 non-asset-based brokerage branches.