Housing is now closed. Beginning October 8 you may contact the hotel directly to make any necessary changes, cancellations or new reservations. If you have any questions you may contact the Automotive Testing Expo Housing Center at 888-594-6219 Ext. 1029 (U.S. and Canada toll-free) or 571-549-4536 Fax: 703-631-2971 or email autoexponovi@gcahousing.com.