The Manager of Opposition Business in the House is the member of the Australian Official Opposition

Opposition (Australia)

Her Majesty's Loyal Opposition in Australia fulfils the same function as the official opposition in other Commonwealth of Nations monarchies. It is seen as the alternative government and the existing administration's main opponent at a general election...

 Shadow Minister responsible for negotiating with the Leader of the House

Leader of the House (Australia)

The office of Leader of the House in the House of Representatives of the Parliament of Australia exists in order for the management of government business, involving such matters as the following:* the order in which Government issues are to be dealt with...

 regarding the proceedings House of Representatives

Australian House of Representatives

The House of Representatives is one of the two houses of the Parliament of Australia; it is the lower house; the upper house is the Senate. Members of Parliament serve for terms of approximately three years....

, including the following:

• the order in which Government
  Government of Australia
  The Commonwealth of Australia is a federal constitutional monarchy under a parliamentary democracy. The Commonwealth of Australia was formed in 1901 as a result of an agreement among six self-governing British colonies, which became the six states...
  
   bills and other items of business are taken
• the time allotted for debate
• the timing of Opposition business

The current Manager of Opposition Business in the House is Christopher Pyne

Christopher Pyne

Christopher Maurice Pyne, MP , Australian politician, has been a Liberal member of the Australian House of Representatives since 13 March 1993, representing the Division of Sturt, South Australia.-Early years:...

 (Liberal), and his deputy is Luke Hartsuyker

Luke Hartsuyker

Luke Hartsuyker , Australian politician, has been a National Party member of the Australian House of Representatives since November 2001, representing the Division of Cowper, New South Wales. He is the current Shadow Minister for Youth and Sport as well as Deputy Manager of Opposition Business in...

 (National). An equivalent office, the Manager of Opposition Business in the Senate, exists in the upper house, currently held by Mitch Fifield

Mitch Fifield

Mitchell Peter "Mitch" Fifield , Australian politician, is member of the Australian Senate since March 2004, representing the state of Victoria for the Liberal Party.-Early years:...

.