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Accreditation and Assessment Practices

Accreditation Assessment Practices Group (AAPG)

The Accreditation Assessment Practices Group (AAPG) is an informal group of accreditation experts, assessors, auditors and practitioners, drawn from the International Accreditation Forum (IAF) and from the International Organization for Standardization (ISO), particularly ISO’s Policy Committee for Conformity Assessment (ISO/CASCO) and some of its Technical Committees e.g. ISO/TC 176 and ISO/TC 207. It was established following the success of the ISO 9001 Auditing Practices Group (APG), and following a request from the IAF’s Technical Committee.

The AAPG has prepared a number of papers and presentations on accreditation assessment practices, against the International Standards and Guides produced by ISO/CASCO. These papers can be found below.

This page is primarily aimed at accreditation bodies and their assessors, as well as certification/registration bodies and their auditors.

The ideas, examples and explanations given reflect the process-based approach that is essential for the accreditation of conformity assessment bodies (CABs) that are themselves applying such an approach in the certification of organisations to e.g. ISO 9001:2015 Quality management systems – Requirements. The papers and presentations that make up the content of this website are not definitive. They reflect a number of different views in accreditation assessments. As such, their content may not always be consistent. It is not intended that the website’s content will be used as specified requirements, an industry benchmark, or as criteria that all accreditation bodies, accreditation auditors, or practitioners have to follow.



QMS Specific


Information on the Revision Status of the above guidance notes.

Feedback from users as to whether additional guidance documents should be developed, or if these current ones should be revised is welcomed by the AAPG. Comments on the papers or presentations can be sent to the IAF TC Secretary.

What’s New

14 July 2021

The new AAPG page has now launched. All current and future AAPG materials will be located here.

Abbreviations and Definitions

On this page the following abbreviations are commonly used:
Auditee = the organization being audited
CAB = Conformity Assessment Body
NCR = Non-Conformity Report
QMS = Quality Management System


There are currently no available unofficial translations of AAPG material. Any proposed additions can be provided to tc@iaf.nu