Written requests for registration refunds must be postmarked on or before May 3, 2019. Cancellations submitted on or before May 3, 2019, are refunded less a $50 cancellation fee. If membership dues were paid while registering, these will not be refunded; only the actual registration fees will be refunded less the $50 cancellation fee. No refunds will be made after May 3, 2019. Refunds are not given for no-shows. Registration substitutions from the same institution are accepted; membership substitutions are NOT accepted. All fees will be reimbursed in the case of meeting cancellation.