Final determinations

The lists of threatened species, populations, ecological communities and key threatening processes in the Schedules of the Biodiversity Conservation Act 2016 are updated when a Final Determination is published on the NSW Legislation website.

The NSW Threatened Species Scientific Committee (NSW TSSC) also publishes a Notice of Final Determination which indicates how a species, population, ecological community or key threatening process meets the criteria for listing and the reasons for the listing.

Final Determinations made before August 2017 were made under the Threatened Species Conservation Act, 1995. Under that Act assessments were made on the threat status of species, populations or ecological communities in NSW and were based on criteria in the Threatened Species Conservation Regulations.

Final Determinations made since August 2017 are made under the Biodiversity Conservation Act 2016 and the listing criteria in the Biodiversity Conservation Regulation 2017. The Conservation Assessment Reports that accompany many Final Determinations are prepared using the Common Assessment Method (CAM).

The Schedules of the Act are maintained by the NSW Threatened Species Scientific Committee. They are updated regularly to take into account final determinations to:

  • add or remove species, ecological communities and key threatening processes
  • amend the names or descriptions of species or ecological communities.

Bioregions referenced in determinations

In determining the bioregions where an ecological community occurs, the Committee uses the Biogeographic Regionalisation of Australia. The Committee’s determinations indicate which version has been referenced for a particular ecological community.

As a guide, the Committee has used the following versions.

Version 4 – Determinations made before March 2013

The Committee used Thackway R, Cresswell ID (1995) An interim biogeographic regionalisation for Australia: a framework for setting priorities in the National Reserve System Cooperative Program. (Version 4.0. ANCA: Canberra).

View a map of the IBRA 4 bioregions (PDF 691KB) from Thackway and Cresswell 1995.

Version 7 – Determinations made since March 2013

The Committee currently uses SEWPaC (2012) Interim Biogeographic Regionalisation for Australia, Version 7. Department of Sustainability, Environment, Water, Population and Communities.

View IBRA Version 7 maps

Recent final determinations

Persoonia mollis subsp. revoluta S.Krauss & L.A.S.Johnson,, a shrub – Vulnerable Species listing
Publication date 16 April 2021
Final Determination and Conservation assessment report using the Common assessment method

Melaleuca armillaris Tall Shrubland in the Sydney Basin Bioregion –Critically Endangered Ecological Community listing
Publication date 19 February 2021
Final Determination and Conservation assessment report using the Common assessment method

Kaputar Rock Skink Egernia roomi – Critically Endangered Species listing
Publication date 19 February 2021
Final Determination and Conservation assessment report using the Common assessment method

Dodonaea stenophylla, a shrub – Vulnerable Species listing
Publication date Friday 12 February 2021
Final Determination and Conservation assessment report using the Common assessment method

Lenwebbia sp. Main Range (P.R.Sharpe+ 4877) – Critically Endangered Species listing
Publication date Friday 30 October 2020
Final Determination and Conservation assessment report using the Common assessment method

The cascading effects of the loss or removal of dingoes from New South Wales landscapes

REJECT a proposal to list as a Key Threatening Process
Publication date Friday 21 August 2020
Final Determination

Boronia inflexa subsp. torringtonensis, a shrub – Critically Endangered Species listing
Publication date Friday 17 July 2020
Final Determination and Conservation assessment report using the Common assessment method

Kardomia prominens, a shrub – Critically Endangered Species listing
Publication date Friday 17 July 2020
Final Determination and Conservation assessment report using the Common assessment method

Key’s Matchstick Grasshopper Keyacris scurra – Endangered Species listing
Publication date Friday 17 July 2020
Final Determination and Conservation assessment report using the Common assessment method

White Box – Yellow Box – Blakely’s Red Gum Grassy Woodland and Derived Native Grassland in the NSW North Coast, New England Tableland, Nandewar, Brigalow Belt South, Sydney Basin, South Eastern Highlands, NSW South Western Slopes, South East Corner and Riverina Bioregions – Critically Endangered Ecological Community listing
Publication date Friday 17 July 2020
Final Determination and Conservation assessment report using the Common assessment method

Amytornis modestus inexpectatus, Thick-billed Grasswren – extinct species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method

Grevillea wilkinsonii, a shrub – critically endangered species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method

Homoranthus bruhlii, a shrub – critically endangered species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method

Homoranthus elusus, a shrub – critically endangered species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method

Maroubra woodland snail Meridolum maryae – endangered species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method

Pimelea bracteata, a shrub – critically endangered species listing
Publication date Friday 15 May 2020
Final Determination and Conservation assessment report using the Common assessment method


Search previous NSW TSSC final determinations

Note: Not all species listed in the Schedules of the Act have a Final Determination. Only those species that have been listed or reviewed by the NSW TSSC since 1996 have a final determination and are included in this database.

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