Supposedly some 350,000 people have an active Commonwealth security clearance, including public servants, defence personnel and contractors that range from plumbers to the Parks Australia taxonomy adviser in Kakadu National Park.
The CT claims that as of May 2013 there were
- 9,806 active security clearances with 'positive vetting' (access to the most sensitive information),
- 31,199 with 'Negative vetting 2' (formerly top secret),
- 124,569 with 'Negative vetting 1' (highly protected, secret) and
- 181,305 with 'Baseline' (confidential, restricted and protected).