Kevin Rudd took over the Australian Labor Party leadership on 4 December 2006, and in the process reaffirming his opposition to WorkChoices. As Labor won government at the 2007 federal election, it retained a federal rather than states-based system. Additionally, it planned to phase out Australian workplace agreements (AWAs) over a period of years with a preference of collective agreements and awards with an exclusion to those earning over $100,000. Unfair dismissal laws were to be restored to all businesses; however, employees joining companies with under 15 employees will be placed under a twelve-month probationary period. Restrictive right of entry rules in to workplaces for unions introduced under WorkChoices were to remain and secret ballots (rather than open ballots) to decide on carrying out strikes were to continue, which would become banned except during periods of collective bargaining. The dismantling of the group of industrial relations bodies created by the government would also occur, and in their place a service known as "Fair Work Australia" would be created.