I have a task order that was awarded in FY 11 and funded with annual appropriations; the order also contains options. We are currently in the first option which has been incrementally funded with both FY 12 and FY 13 funds. Based on the antecedent liability rule, (which requires funding change orders with the same type of funding that was used for the "original contract") if I do a change order, do you think it needs to be funded with FY 11, FY 12 or FY 13 funds? I'm already working with Counsel and we are looking to get some feedback as to how others may have handled this situation.