Part of those cost reductions will come from fleet rationalisation, with Joyce's presentation to the conference providing new information on Qantas's fleet plans, including aircraft type retirements and aircraft utilisation plans. As already announced the Qantas mainline domestic fleet will operate just two types (the A330-200 and 737-800) by the end of March 2015, but his presentation explains that since the end of 2013 the last three 737-400s have been retired, with two 767 retirements due by the end of June and that a further six 767s will be withdrawn from the fleet by the end of 2014, with the last six to retire between January and March 2015. The 767s are able to be retired as Jetstar continues to take delivery of 787-8s, which in turn allows Jetstar to roll over its A330-200s to Qantas.