​​Registrants with a login can make changes and cancelations online via My Registrations. Cancellations received/processed by August 27, 2020, are fully refundable. Registrants who cancel after August 27, 2020, and no-shows are responsible for paying the full registration fee. No substitution or cancelation refund is available once the online course begins. If you have difficulty canceling online, please contact Accounts Receivable at 703-907-6875,​ or fax to 703-907-5951.