Cancellations received in writing more than 3 weeks before the event will be subject to a service charge of $150.00 CAD. The full conference fees remain payable if cancellations are received less than 2 weeks prior to the event. Substitutions are welcome at any time. It may be necessary for reasons beyond the control of the organizer to alter the timing of the program or the identity of the speakers. In the unfortunate event that an event is cancelled IPA are not liable for any costs incurred by delegates in connection with their attendance.