Event Registration ATSSA: Traffic Control Supervisor (TCS) Event Date(s): 4/28/2026 to 4/29/2026 Event Time: Step 1: (Select at least one event item) Item(s): Event ItemAttendees Per ItemPriceQuantityPurchaseTax This process uses the latest SSL security encryption. If you'd rather place your order by telephone, please call (208) 344-2531 or fax your registration along with your credit card information to 208-343-5321.