ISU Communication 2431 04 October 2021. Decisions of Council - October 4, 2021. pdf. ISU Communication 2430 01 October 2021. ISU Junior World Cup Speed Skating 2021/22, including International Competitions for "Neo-seniors". pdf. ISU Communication 2429 30 September 2021. ISU Speed Skating Officials' Online Video Seminars 2021..