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.

2025 Software Accreditation Protocol

• Software Accreditation Protocol - New Homes (pdf)

2022 Software Accreditation Protocol

• Software Accreditation Protocol - Thermal (pdf) 
• Software Accreditation Protocol - Whole of Home (pdf)
• Standard Operating Procedure NatHERS accredited software tools -  Processing Minor Updates (pdf)
• Minor Update request form (pdf)
• NatHERS Software Accreditation Terms and Conditions (pdf)
• Standard Operating Procedure - Feature exemption application (pdf)

2019 Software Accreditation Protocol

• 2019 Software Accreditation Protocol (pdf) 

2012 Software Accreditation Protocol

• 2012 NatHERS Software Accreditation Protocol (pdf)