Credit Calculator for Major Projects and BioBanking

The Biodiversity Offsets Scheme under the Biodiversity Conservation Act 2016 commenced on 25 August 2017 visit Biodiversity Offset Scheme.

The information on this page only remains relevant for savings and transitional arrangements under former legislation and policy. Visit Biodiversity Offset Scheme Transitional Arrangements for more information.

The Credit Calculator for Major Projects and BioBanking is an online application that applies the BioBanking Assessment Methodology (BBAM 2014) (PDF 1.5MB) (the methodology) or the Framework for Biodiversity Assessment (FBA) (PDF 1.27MB) to calculate the number and type of credits created at a biobank site or the number and type of biodiversity credits required to offset the impacts of development on biodiversity.

A username and password are required to access version 4.1 of the calculator. Usernames and passwords are allocated by OEH to accredited BioBanking Assessors.

Assessments using the methodology are based on survey data and information collected at the site as well as information contained in the Vegetation Information System (VIS) Classification database and the Threatened Species Profile Database.

The data in the biodiversity databases is reviewed and updated by OEH regularly as new information becomes available. Updated data will only be imported into the Credit Calculator at specific times. Assessors will be notified at least 6 weeks prior to when the biodiversity databases are updated.

The operational manual and guide to using the credit calculator

The BioBanking Assessment Methodology and Credit Calculator: Operational manual (PDF 2.3MB) provides guidance on the assessment methodology and the field survey methods used to assess a development site or biobank site. This includes the assessment of vegetation type, condition, threatened species and landscape value of a site.

Note: The operational manual is currently being updated to include recent amendments to the BBAM 2014 and the FBA.

The Credit Calculator for Major Projects and BioBanking Operational Manual (PDF 4.0MB) provides detailed guidance on the operation and use of the web-based credit calculator. This manual has recently been updated to incorporate changes to the functionality of the calculator, which were implemented to meet the requirements of the BBAM 2014 and the FBA. These changes include a module for Major Project assessments, which incorporates an option for assessing the impacts of linear-shaped and site-based developments.

training course is available that provides users with a more detailed understanding of the methodology and the function and operation of the calculator. Completion of the training course is also a pre-requisite for anyone applying to become an accredited BioBanking Assessor.

For further information please email the BioBanking team at  

Page last updated: 28 August 2017