 Bids for running the Natcon are voted on by attendees at the Natcon two years in advance.These votes are held at a Business Meeting organised by the convention committee, and held at the convention, in practice much of the organisation of the meeting is done by a standing committee selected by the prior meeting.The Ditmar Award has been awarded at the convention since 1969 to recognise achievement in Australian science fiction (including fantasy and horror) and science fiction fandom.