Heartland Express is a holding company. Through its subsidiaries, Co. is engaged as a short-to-medium haul truckload carrier. Co. primarily provides asset-based dry van truckload service for primary shippers from Washington to Florida and New England to California. Co. also provides temperature-controlled truckload services, which are not significant to its operations. Co. operates terminal facilities throughout the contiguous U.S. in addition to its terminal and corporate headquarters in North Liberty, IA.