"WorkChoices" was not a 2004 Liberal party election policy. However, following the 2004 federal election, the Liberal-National coalition held a majority in both houses of parliament, and amendments were introduced into the House of Representatives on 2 November 2005. A senate inquiry was held into the Bill from 14 November 2005 to 22 November 2005. The length of this was criticised by the Opposition as being too short. A survey by the Workplace Authority found that although most AWAs (Australian workplace agreement) removed some leave loadings, this was also accompanied by a wage rise in most cases. "WorkChoices" was passed by the Senate on 2 December 2005. The primary changes came into effect on 27 March 2006.