If an event has to be cancelled due to unforeseen or unavoidable circumstances, local event organizers will assume all responsibility for notifying the public, negotiating unfulfilled contracts and providing reimbursements, where necessary. If the cancellation occurs later than March 2, 2020 (after the Doors Open Ontario brochure has been sent to print), there will be no refund of the registration fee. If an event is in danger of being cancelled, it is highly recommended that it be scaled back in size rather than cancelled completely. Significant efforts should always be made to avoid cancellation, as it is impossible to notify all prospective visitors adequately. Event organizers should contact an Ontario Heritage Trust representative to discuss options prior to cancelling an event.