NATA test reports explained

Reports issued by NATA accredited organisations for example, test reports and calibration certificates, are documents that describe the activities performed, the results of those activities and, where necessary, include information required to interpret these results. 

NATA endorsement

NATA accredited organisations are encouraged to include the NATA endorsement on their reports for activities covered under their scope of accreditation. 

Use of the NATA endorsement is not permitted on reports of testing outside the scope of accreditation. 

There are some exceptions to this rule and in these cases, it is recommended you speak to a NATA Accreditation Specialist prior to endorsing reports. 

Report inclusions

Reports from accredited organisations must include information relevant to the international standard they are accredited to – for example – ISO 15189 for human pathology organisations or ISO/IEC 17025 for calibration laboratories. 

It should be noted that different industries and programs may have different or additional reporting requirements, so it is important you speak to a NATA Accreditation Specialist if you have any questions. 

Preliminary reports

Preliminary reports may be issued prior to completion of all parts of a test . 

In these cases, those parts of the test being reported must be checked and authorised and the status of the report noted as preliminary.

Verifying Authorities

NATA accredited organisations that have been appointed as Verifying Authorities by the National Measurement Institute of Australia (NMI), must comply with reporting, calibration and test method requirements of the NMI. 

Where relevant they must also hold Regulation 13 certificates for their reference equipment. 


Where a report contains results of tests performed by subcontractors, these results must be clearly identified. 

Amendments to reports or Calibration Certificates 

After issue, any amendments to a report or calibration certificate must be noted in an additional document which includes the statement: 

“Supplement to Test Report [or Calibration Certificate], serial number 0000000 [or as otherwise identified].” 

When an organisation is required to issue a new report or Calibration Certificate, the new report must be identified as such and include a reference to the original.

More information

If you have any further questions about a report you have received from a NATA accredited organisation, please do not hesitate to  Contact us. 

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Benefits of being a NATA accredited organisation

NATA accredits organisations to perform testing and inspection activities for their products and services. This gives consumers the assurance they need to make safe, healthy and reliable choices. When you choose to become NATA accredited, you can be sure of a number of competitive advantages for your business.
NATA members receive a globally-recognised, peer-reviewed and government endorsed accreditation that provides a unique level of assurance to members, their clients and the community.
Our accreditation provides an independent benchmark for technical competence. Receiving NATA accreditation demonstrates to customers your organisation’s commitment to quality, safety and reliability of products and services.
NATA accreditation is both nationally and internationally recognised. This provides a competitive advantage when compared to non-accredited organisations and ensures you are market-ready to capitalise on trade opportunities.
NATA has been training individuals and teams both nationally and internationally for over 20 years and enjoys a global reputation for the quality of its courses and programs. Our active role in international accreditation education has seen us conduct training in over 20 countries.
NATA’s long standing and active involvement with international groups enables our members to gain international recognition for their accreditation and minimises the need for multiple assessments from different suppliers.
NATA provides innovative and timely business solutions that meet the needs of our members and fulfil the expectations of the community. We have the experience and resources to ensure your accreditation provides you and your organisation with unique advantages.