​​​​​​​Members with a login can make changes and cancellations online via ​My Registrations. Cancellations received/processed by June 11, 2022 for Group 1, are fully refundable. Cancellations received/processed by August 27, 2022 for Group 2, are fully refundable. Registrants who cancel after these dates will be issued a refund minus a 50% cancellation fee. Substitutions are accepted. No-shows and registrants failing to cancel prior to July 11 or September 26​, are responsible for paying the full registration fee. Special events or ticketed item fees are non-refundable. ​If you have difficulty cancelli​ng online, please contact Accounts Receivable at 703-907-6875,, or fax to 703-907-5951.