The Australian Business Aviation Association (ABAA) has asked the Australian government to begin treating business aircraft with the same sort of priority as airliners by allowing them to take part in the airport slot system currently in place at Sydney. The current airline slot system restricting both domestic and international business aviation is expected to take effect soon at both Brisbane and Perth. Right now, business aircraft, especially those arriving from long distances, must carefully plan fuel loads keeping in mind that they are not allowed to land or take off between 6 and 9 a.m. and 4:30 and 7 p.m. ABAA is hoping for an answer before year-end.