​Members with a login can make changes and cancellations online via My Registrations. Cancellations received/processed by June 25, 2021 are fully refundable. Registrants who cancel after June 25, 2021, will be issued a refund minus 50% of the registration fee. Substitutions are accepted. No shows and registrants failing to cancel prior to July 26, 2021​, are responsible for paying the full registration fee and any pre-con, post-con workshops, courses, etc., if applicable. Special events or ticketed item fees are non-refundable. If you have difficulty cancelling online, you may contact Accounts Receivable at 703-907-6875, or fax to 703-907-5951.