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Protocol for Assessor Accrediting Organisations
This Protocol describes the processes that Assessor Accrediting Organisations (AAOs) must undertake once approved by the NatHERS Administrator. AAOs accredit NatHERS Assessors to conduct energy rating assessments for regulatory purposes.
The current Protocol for Assessor Accrediting Organisations was released in October 2021.
Protocol for Assessor Accrediting Organisations – October 2021 [PDF 952 KB] - current
Protocol for Assessor Accrediting Organisations – March 2016 (July 2020 update) [NEW PDF 718 KB] - superseded
Protocol for Assessor Accrediting Organisations – March 2016 [PDF 429 KB] - superseded
Protocol for Assessor Accrediting Organisations – March 2014 [PDF 411 KB] - superseded
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Process for including (the properties of) new materials/products into NatHERS accredited software
This document describes the process for adding any new building materials to the product and material information databases built into each of the NatHERS Accredited Software tools.
Process for including new building materials in NatHERS Software
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NatHERS Certificate Guidance Factsheets
The new NatHERS Certificate Guidance factsheets provide details on the features builders, certifiers and home owners should look for on a certificate. The NatHERS Certificate allows builders, certifiers and regulatory authorities to quickly confirm that the building has been built to the design on which the energy rating assessment is based. All certificates including the Non-Accredited certificate include information on the dwelling’s key design features, building materials and parameters used to generate its star rating.
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NatHERS Accredited Certificate Samples
Across Australia, all Nationwide House Energy Rating Scheme (NatHERS) star ratings are presented on a certificate. The shows key details about the dwelling, while the other pages give details about the building specifications and assessment assumptions. The certificate will be in one of two formats:
1. If the certificate includes the NatHERS logo, it has been completed by a NatHERS accredited assessor. These certificates can be printed in colour.
2. If the certificate does not include the NatHERS logo, it has been completed by a non-accredited assessor. These certificates can only be printed in black and white.
They have been designed so that regulatory authorities and consumers can understand and easily check the home’s rating. The QR code, in particular, is key. When scanned, it takes the user to the original certificate that is stored on a secure website.
The data from these certificates goes into the CSIRO Australian Housing Data portal (AHD). Furthermore, the certificates are actually the way much of the NatHERS Scheme is funded.
NatHERS Accredited Certificate Sample - Single dwelling
NatHERS Accredited Certificate Mini Sample - Single dwelling
NatHERS Accredited Certificate Sample - Class 2 Summary
NatHERS Accredited Certificate Mini Sample - Class 2 Summary
NatHERS Non-accredited Certificate Sample - Single dwelling
NatHERS Non-accredited Certificate Mini Sample - Single dwelling
NatHERS Non-accredited Certificate Sample Class - Class 2 Summary
NatHERS Non-accredited Certificate Mini Sample Class - Class 2 Summary
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NatHERS Certificate (Accredited)
Across Australia, all Nationwide House Energy Rating Scheme (NatHERS) star ratings are presented on a certificate. The shows key details about the dwelling, while the other pages give details about the building specifications and assessment assumptions. The certificate will be in one of two formats:
1. If the certificate includes the NatHERS logo, it has been completed by a NatHERS accredited assessor. These certificates can be printed in colour.
2. If the certificate does not include the NatHERS logo, it has been completed by a non-accredited assessor. These certificates can only be printed in black and white.
NatHERS Certificate (Accredited)
NatHERS Certificate (Non-Accredited)
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NatHERS Technical Advisory Committee membership list
The Nationwide House Energy Rating Scheme (NatHERS) Technical Advisory Committee (TAC) is an expert body that provides stakeholder and industry advice to the NatHERS Administrator on technical matters related to NatHERS.
The TAC is made up of industry representatives and technical experts in the areas of NatHERS software tools, NatHERS assessor training and practices, building physics, and glazing.
Documents
List of members of 2017-2019 Technical Advisory Committee [30KB PDF]
List of members of 2017-2019 Technical Advisory Committee [40KB Word]
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Stakeholder Consultative Group Terms of Reference and Deed of Confidentiality
The Nationwide House Energy Rating Scheme (NatHERS) Stakeholder Consultative Group (SCG) provides stakeholder and industry feedback to the NatHERS Administrator on the development, implementation and continuous improvement of NatHERS.
The Stakeholder Consultative Group Terms of Reference and Deed of Confidentiality outlines:
- the role of the committee
- accountability and governance arrangements
- membership
- application and appointment process
- Confidentiality, Privacy and Conflict of Interest Deed which must be signed by SCG members.
Documents
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Technical Advisory Committee Terms of Reference and Deed of Confidentiality
The Nationwide House Energy Rating Scheme (NatHERS) Technical Advisory Committee (TAC) is an expert body that provides stakeholder and industry advice to the NatHERS Administrator on technical matters related to NatHERS.
The Technical Advisory Committee Terms of Reference and Deed of Confidentiality outlines:
- the role of the committee
- accountability and governance arrangements
- membership
- application and appointment process
- Confidentiality, Privacy and Conflict of Interest Deed which must be signed by TAC members
Documents
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2019 Software Accreditation Protocol
The Nationwide House Energy Rating Scheme (NatHERS) provides a standardised approach to rating the thermal performance of Australian dwellings.
The NatHERS Software Accreditation Protocol outlines the requirements and processes for:
- accrediting new energy rating software tools
- updating existing accredited tools
This ensures that software meets standard requirements and produces consistent results in calculating energy loads and star ratings of residential buildings.
The star rating is used to meet minimum regulatory requirements for dwelling design under the National Construction Code.
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NatHERS Climate Zone Postcodes
Spreadsheet listing NatHERS Climate Zones by postcode - aligns with the climate zones displayed in NatHERS Accredited Software tools.
