​​​Members with a login can make changes and cancellations online via My Registrations. Cancellations received/processed by September 19, 2021, are fully refundable. Registrants who cancel after September 19, 2021, will be issued a refund minus $200 cancellation fee. Substitutions are accepted. No shows and registrants failing to cancel prior to October 4, 2021, are responsible for paying the full registration fees and any pre-con courses, etc., if applicable. Special events or ticketed item fees are non-refundable. If you have difficulty cancelling online, please contact Accounts Receivable at 703-907-6875, or fax to 703-907-5951.