Official cancellation policy.
All your registration money except $50 is refundable if you cancel by May 9.
Half is refundable if you cancel by June 9, or 100% may be applied to the next year’s conference.
After June 9, your fees may be applied to the next year’s conference, but they are no longer refundable.
After opening ceremonies on the first day of the conference, your fees become non-refundable and cannot be applied to a subsequent conference.