On March 31 exemptions to ACAS II (TCAS II, Change 7) requirements in Europe were set to expire. The rule, which had been delayed by more than a year to give operators time to equip, covers all civil turbine-powered airplanes with mtow greater than 12,566 pounds or configured for more than 19 passengers. An earlier Eurocontrol mandate requires ACAS II in airplanes weighing more than 33,069 pounds or approved to carry more than 30 passengers.