There are now Acts in both federal (Commonwealth) and state (all Australian states) law which provide lists of species which are considered extinct, endangered, or vulnerable. The most recent Commonwealth legislation is the Environment Protection and Biodiversity Conservation Act 1999. In NSW (for example) we have the Threatened Species Conservation Act 1995. The associated lists are usually not identical (when state is compared with state, and state with Commonwealth). State lists include the species in the Commonwealth list but the reverse is not true. If we look at the Glossy Black situation we find that it is included in the NSW vulnerable list but is not included in the Commonwealth vulnerable list.The lists are the responsibility of appropriately qualified, and independent, scientific committees and of course need updating from time to time. The most recent update of the NSW lists was on 12 December 2003.
The NSW lists include, not only endangered species but also (1) endangered populations, (2) endangered ecological communities, and (3) key threatening processes.
In NSW the National Parks and Wildlife Service (NPWS) have the responsibility under the Act of protecting threatened species, ecological communities, and populations (check this NPWS site for more information).