ISO/IEC 17043 Proficiency Testing Scheme
ISO/IEC 17043 provides the specific requirements for the development, operation and competent operations of Proficiency Testing Scheme Providers (PTSP).

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What is ISO/IEC 17043?
The ISO/IEC 17043 Standard is applicable for all types of PTSPs.
Testing and calibration organisations who rely on proficiency testing to gauge their own performance can have confidence in the competence of NATA accredited PTSPs.
ISO/IEC 17043 accreditation
Accreditation to ISO/IEC 17043 demonstrates an independently proven competence in the planning, development and execution of proficiency testing schemes.
A PTSP accredited to ISO/IEC 17043 highlights its compliance to an international standard, facilitates efficiencies through continuous improvement processes, reduces potential costs to the provider and allows for a competitive edge in the market.
Accreditation benefits
ISO/IEC 17043 accreditation gives PTSP’s the ability to conduct and prove competency in production, testing and statistical approaches to handling homogeneity and stability of test samples and artifacts as well as the analysis of participants data.
PTSP’s also benefit from a globally recognised Standard that gives them a competitive market edge.
Other ISO/IEC 17043 accreditation benefits include:
- Competence and credibility
- Independence and impartiality
- International recognition with the international accreditation organisations
- Benchmarking ongoing performance against relevant standards
- Giving clients the highest level of assessment and professionalism in the industry
- The ability to always meet mandatory regulatory requirements
- The ability to compete in the market
Accreditation areas
NATA has accredited PTSPs in the following areas:
- Animal health
- Environment
- Food and beverage
- Human pathology
- Forensic science
- Civil construction
- Surface friction testing

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FAQs
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PT schemes operate by providing participating laboratories with test samples for analysis. Laboratories analyse the test samples, preferably as part of their normal routine, and report the results to the scheme organisers.
They are then provided with a report showing how closely their results agree with the accepted values.
Regular participation in a proficiency-testing:
- Provides staff with an insight into their laboratory’s performance
- Benchmarks performance with that of other participant laboratories
- Demonstrates to end users of analytical data, regulatory and accreditation bodies that there is a commitment to measurement quality
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The NATA Accreditation Criteria (NAC) packages are made up of numerous documents which are available for download.
There are General Accreditation Criteria which apply to all facilities, and Specific Accreditation Criteria tailored for industry sectors and activities.
- General NATA Documents
- General Accreditation Criteria
- Specific Accreditation Criteria
General Accreditation Guidance and Specific Accreditation Guidance documents present information on common technical or operational issues.
- General Accreditation Guidance
- Specific Accreditation Guidance
- General Accreditation Forms
17043 NATA Accreditation Criteria Package
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Download all
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Accreditation of multi-site facilities – Effective January 2023
October 28, 2022
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Remote Assessment Policy
December 4, 2022
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ISO IEC 17043 2023 Proficiency Testing Providers – Standard Application Document (SAD)
November 24, 2023
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Maintenance of Microbiological Reference Culture Collections (MRCC)
August 13, 2021
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Corporate Accreditation – Accreditation of Multiple Site Facilities and/or Facilities Accredited in Multiple Programs – (this policy is applicable only to those facilities that have not yet transitioned to the GAC Accreditation of multi-site facilities policy)
January 14, 2018
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Proficiency Testing Policy
December 3, 2021
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Metrological Traceability
December 20, 2020
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Equipment Assurance, in-house Calibration and Equipment Verification
May 2, 2019
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Responsibilities of Authorised Representatives
July 25, 2019
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Use of the NATA Emblem, NATA Endorsement and References to Accreditation
June 2, 2023
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Forensic Operations Module
March 10, 2019
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Accreditation of New Branch Sites
March 21, 2023
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ISO/IEC 17043 2010 Standard Application Document (SAD)
January 13, 2018
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