​Members with a login can make changes and cancellations online via My Registrations. Cancellations by May 18, 2023 are fully refundable. Registrants who cancel after May 18, 2023​  ​will be issued a refund minus a $350 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. ​