Per the ACAS Best Practices Guide, ACAS Training Requirements - select the correct (true) statements: The ACAS training must be done every year to maintain a valid certificate of completion. JFHQ-DODIN requires that ACAS users complete the DISA ACAS Operator and Supervisor Course. Changes to the ACAS baseline, tool capabilities and the task order necessitate a three-year re-training cycle. JFHQ-DODIN requires that ACAS users take any ACAS training offered by their service or agency to meet the training requirement