The NSW Biodiversity Conservation Act 2016: What Has Changed and How It Affects Your Project
- Guy Smith
- 6 days ago
- 3 min read
The Biodiversity Conservation Act 2016 (BC Act) is the primary piece of legislation governing biodiversity assessment and conservation in New South Wales. It replaced the Threatened Species Conservation Act 1995 and introduced significant changes to how biodiversity impacts are assessed, managed, and offset in the state. For anyone involved in development, land management, or infrastructure delivery in NSW, understanding the BC Act is essential.
What Did the BC Act Replace?
Prior to the BC Act, biodiversity in NSW was primarily managed under the Threatened Species Conservation Act 1995 (TSC Act) and Part 3A/Part 4 of the Environmental Planning and Assessment Act 1979. The old framework relied on the Eight-Part Test (under Section 5A of the EP&A Act) and the BioBanking scheme for offsetting. The BC Act consolidated and modernised these arrangements into a single, more streamlined framework.
Key Changes Under the BC Act
The Biodiversity Offsets Scheme
The BC Act established the Biodiversity Offsets Scheme (BOS), replacing the old BioBanking scheme. The BOS introduced clearer thresholds for when offsetting is required, a more standardised assessment methodology (the Biodiversity Assessment Method, or BAM), and the Biodiversity Conservation Fund as an alternative to purchasing credits on the open market. The scheme applies to development under Part 4 and activities under Part 5 of the EP&A Act, as well as biodiversity certification and clearing under the Local Land Services Act 2013.
The Biodiversity Assessment Method (BAM)
The BAM replaced the BioBanking Assessment Methodology as the standardised tool for assessing biodiversity impacts. It is used by accredited assessors to prepare Biodiversity Development Assessment Reports (BDARs) and Biodiversity Stewardship Site Assessment Reports (BSSARs). The BAM is a more detailed and data-driven methodology that uses the BAM Calculator, a software tool that integrates with the NSW BioNet database to determine credit requirements.
The Five-Part Test of Significance
The BC Act replaced the old Eight-Part Test with a streamlined Five-Part Test of Significance under Section 7.3. The new test focuses on five key factors relating to the viability and extinction risk of threatened species and ecological communities. While simpler in structure, the test still requires careful ecological judgement and a thorough understanding of the species and communities in question.
The Biodiversity Conservation Trust
The BC Act established the Biodiversity Conservation Trust (BCT) as a statutory body responsible for managing the Biodiversity Conservation Fund and supporting private land conservation. The BCT manages payments into the fund from developers who choose to pay rather than purchase credits directly. It also administers conservation agreements with landholders and manages funded conservation programs across NSW.
The Biodiversity Values Map
The BC Act introduced the Biodiversity Values Map, which identifies areas of high biodiversity value across NSW. If a proposed development falls on mapped land, the Biodiversity Offsets Scheme is triggered regardless of the area of native vegetation to be cleared. The map is regularly updated and is an important tool for early project planning.
Accredited Assessors
Under the BC Act, only accredited assessors approved by the NSW Government can prepare BDARs and BSSARs. This accreditation ensures a consistent standard of assessment across the state and provides confidence to consent authorities and stakeholders that the assessment has been prepared by a qualified professional.
What This Means for Your Project
The BC Act has created a more structured and predictable framework for managing biodiversity in NSW. For developers and landholders, this means clearer rules about when ecological assessments are required and what form they need to take. However, it also means that understanding the legislation and engaging the right expertise early is more important than ever. The consequences of getting it wrong include project delays, unexpected offset costs, and potential refusal of consent.
Expert Guidance from Ecological Solutions
At Ecological Solutions, we have been working with the BC Act framework since its introduction. Our accredited assessors are experienced in applying the BAM, preparing BDARs and BSSARs, and advising clients on the most efficient path through the Biodiversity Offsets Scheme. Whether you are a developer planning a new project, a landholder considering a stewardship agreement, or a government agency managing environmental approvals, we can provide the expert guidance you need. Contact us today to discuss how the BC Act affects your project.

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