Senator BIRMINGHAM (South Australia—Parliamentary Secretary to the Minister for the Environment) (16:16): by leave—I move: That senators be discharged from and appointed to committees as follows: Community Affairs References Committee— Discharged—Senator Urquhart Appointed—Senator Thorp Economics Legislation Committee— Appointed— Substitute members: Senators Sterle and Gallacher to replace Senators Bishop and Pratt for the committee's inquiry into the Qantas Sale Amendment Bill 2014 Participating members: Senators Bishop and Pratt Foreign Affairs, Defence and Trade Legislation Committee— Discharged—Senator Faulkner Appointed—Senator McEwen Foreign Affairs, Defence and Trade References Committee— Appointed— Substitute member: Senator Conroy to replace Senator Stephens from 17 to 21 March 2014 Participating member: Senator Stephens National Broadband Network—Select Committee— Appointed— Substitute members: Senator O'Neill to replace Senator Thorp on Wednesday, 12 March Senator Rhiannon to replace Senator Ludlam on Wednesday, 12 March Participating members: Senators Ludlam and Thorp Rural and Regional Affairs and Transport References Committee— Appointed— Substitute members: Senator Edwards to replace Senator Heffernan for the committee's inquiry into Qantas on Friday, 14 March 2014 Senator Rhiannon to replace Senator Whish-Wilson for the committee's inquiry into Qantas Participating member: Senators Heffernan and Whish-Wilson Senators ' Interests—Standing Committee— Discharged—Senator Thorp Appointed—Senator Brown. Question agreed to.