Senator BIRMINGHAM (South Australia) (14:42): My question is to the Minister for Broadband, Communications and the Digital Economy, Senator Conroy. I refer the minister to information he tabled in the Senate yesterday which said that— Honourable senators interjecting— The PRESIDENT: Senator Birmingham is entitled to be heard in silence. The exchange across the chamber does not help Senator Birmingham present his question. Order, on both sides! Senator BIRMINGHAM: I was referring the minister to the information tabled in the Senate yesterday which said: Until such time as the new national standard is agreed and the training course is up and running, NBN Co. will transfer the important task of handling and removing asbestos in pit and pipe and disposing of asbestos waste from its tier 1 contractors to specialist asbestos removal firms. Can the minister advise the Senate what gaps exist in existing training for NBN Co. contractors that necessitate the suspension of asbestos handling by those particular contractors?