EXHIBIT 21 Subsidiaries of U.S. Xpress Enterprises, Inc. For Year Ended December 31, 2000 U.S. Xpress, Inc., a Nevada corporation CSI/Crown, Inc., a Georgia corporation Victory Express, Inc., an Ohio corporation PST Vans, Inc., a Nevada corporation U.S. Xpress Leasing, Inc., a Tennessee corporation Xpress Company Store, Inc., a Tennessee corporation Xpress Air, Inc., a Tennessee corporation