Senator Bob Carr: The Minister for Defence has provided the following answer to the honourable senator's question: Over the period 1 January to 30 June 2012, submarines undergoing maintenance/refit programs were as follows: Other than self-maintenance, HMAS Collins did not conduct any other planned maintenance or docking periods. HMAS Farncomb continued a planned Intermediate Maintenance Availability from 1 January 2012, which concluded on 6 February 2012. This was followed by unscheduled maintenance until 12 April 2012. HMAS Waller was conducting a planned Mid Cycle Docking throughout. HMAS Dechaineux commenced a planned Intermediate Docking on 12 March 2012, which was ongoing on 30 June 2012. HMAS Sheean was conducting a planned Full Cycle Docking throughout. HMAS Rankin was conducting a planned Full Cycle Docking throughout.