- thank you Martin for asking the ? above - - in WikiTree g2g - - As you will see from most of the answers that followed, this Island has 5 States and NT., and Tasmania, its own Island, and together they form the Commonwealth of Aust. (Federal). However, the Sovereign states are responsible for their own BDM departments (through their Justice Depts.) Subject to now privacy laws, ie Births 100yrs from today, is 1923 (circa).
- So, you will see a 'free' and 'good' summary for most states (South Aust did sell their records to the Genealogical Society in that state). The biggest 'pain' occurs when profiles move around from state to state, such as in the 1850s, gold and copper miners, and 1890s in West Aust. Teachers moved from place to place as the population rose and fell. - - On the other hand, CoAustralia is the responsible entity for the census, since 1901, the data is kept for stats, but not the records, (but we won't go there).
As mentioned, NLAs Trove is a great search engine for all things in the newspapers - - - - enjoy - cheers - -