There have been four waves of Integrated Drug Treatment System (IDTS) funding. The first wave of IDTS funding was announced in June 2006. Of the first to third waves (2006-07 to 2008-09 financial years) 78 of the 91 IDTS prisons have been assessed as having an operational service providing all the key elements of IDTS clinical and psychosocial services.
Of the 91 first to third waves of IDTS there are 19 prisons with a young offenders population. Only one young offenders institute that received IDTS funding in the third wave does not have an operational IDTS.