 Complete the following phrase:  In 1992 the Tobacco Advertising Prohibition Act 1992 expressly prohibited almost all forms of tobacco advertising in Australia, including the sponsorship of sporting or other cultural events by cigarette brands. Contracts were to be honoured and so domestic sporting and cultural events were allowed to have their corporate sponsorships run their course, but they were no longer allowed to enter into new or renew existing sponsorships. Therefore, by 1998, all domestic sponsorships had expired naturally. However, the Act gave the Federal Minister for Health and Ageing the right to grant exemptions to events of international significance that would be likely to result in the event not being held in Australia should tobacco advertising be forbidden. A clause in the Act forbade events from applying for an exemption after 1 October 2000, unless they had previously been granted one. By 2006, this had led to only two events being eligible  the Australian Motorcycle Grand Prix and the Australian Formula One Grand Prix. A further clause removed the Ministers right to grant any exemptions for any event held after 1 October 2006: the 