Administrative Arrangements Orders declare which government ministries are responsible for areas or matters, and specify which pieces of legislation they will administer. Where legislation simply refers to 'the Minister', the current AAO will help you identify which minister.
Administrative Arrangements Orders are published in government gazettes, or on the web as below:
Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Australia License.