Accredited Assessor

About ABSA Accreditation

The national ABSA Accreditation Scheme has been developed to comply with the Nationwide Housing Energy Rating Scheme Protocol for Assessor Accrediting Organisations (NatHERS AAO Protocol) to determine proficiency for individuals wishing to undertake residential building thermal performance assessments (also known as House Energy Ratings) under the following assessment schemes:

  • The National Construction Code (NCC) – under the NCC, a building thermal performance assessment must be undertaken by a suitably qualified person. ABSA accreditation is the predominant requirement to satisfy this condition
  • The NSW Building Sustainability Index (BASIX) Thermal Comfort Certificate (or Simulation Method), which is applicable across NSW. The use of an ABSA Accredited Assessor to carry out this work is a mandatory BASIX requirement

To apply for ABSA Accreditation, the following steps are required:

To submit your application for ABSA Accreditation, Please complete the Thermal Performance Asessor Application Form and return to along with your NatHERS Cert IV documentation and your signed ABSA Code of Practice and pay the necessary fees.

To maintain continuing Accreditation, the following is required:

  • Payment of ABSA annual Accreditation Fees
  • Submission of assessments for Quality Assurance Auditing when requested
  • Completion of 12 points of Continuing Professional Development each year
  • Ongoing compliance with the current NatHERS Technical Note