​​​Members with a login can make changes and cancellations online via My Registrations. Cancellations by July 2023 are fully refundable. Registrants who cancel after July 2023 will be issued a refund minus a $200 cancellation fee per course. Substitutions and course changes are accepted. No shows and registrants failing to cancel prior to the event are responsible for paying the full course registration fees. 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.​