• Welcome Guest
  • white bg

» ILAC – ISO Partnership


ILAC and the International Organization for Standardization (ISO) have a long standing relationship.

ILAC has an ‘A’ liaison status within the ISO Committee on Conformity Assessment (CASCO) as well as a number of the ISO technical committees. ILAC is also involved in a number of the ISO working groups for developing standards. Further information on the ILAC and ISO liaison activity is available from the members area of the ILAC website.

Presentations on ISO-CASCO standards are available from the ISO website in the Resources for Conformity Assessment page.


Memorandum of Understanding

The IAF-ILAC-ISO Memorandum of Understanding (MoU) was initially signed in 2004 and re-signed on 10 April 2014. The scope of the MOU covers the relationship between ILAC, IAF and ISO in matters of conformity assessment policy, standards development and practice as they relate to accreditation. The scope of the MoU is alongside the roles and responsibilities that the parties already have towards each other, that arise from IAF and ILAC being liaison members of ISO committees, and of ISO having special recognition status within IAF and being an observer member of ILAC.

IAF-ILAC-ISO Memorandum of Understanding (MoU) 2004 - Joint Communiqué


Joint Communiqués

ISO/IEC 17011 Communiqué

Following the initial publication of ISO/IEC 17011:2004 Conformity Assessment – General requirements for accreditation bodies accrediting conformity assessment bodies, IAF, ILAC and ISO issued a Communiqué in November 2004 and a Press Release in December 2004.

Joint IAF-ILAC-ISO Communiqué on ISO/IEC 17011:2004

Joint IAF-ILAC-ISO Communiqué on ISO/IEC 17011:2004 – Press Release

ISO/IEC 17025 Communiqué

The Joint ISO-ILAC-IAF Communiqué issued in April 2017 on the Management Systems Requirements of ISO/IEC 17025 General Requirements for the competence of testing and calibration laboratories, confirms that laboratories accredited to ISO/IEC 17025 operate a recognised quality management system.

Joint IAF-ILAC-ISO Communiqué on ISO/IEC 17025

ISO/ILAC 17025 Transition Communiqué

ISO and ILAC have issued a joint Communiqué that accredited laboratories can provide to clients to demonstrate that both the 2005 and 2017 versions of ISO/IEC 17025 remain valid during the three-year transition process. The ILAC resolution for the transition period was adopted in November 2016 and is shown below. It is also available from here.

ILAC Resolution GA 20.15

As the revised version of ISO/IEC 17025 is scheduled for publication in 2017, the General Assembly endorses the recommendation of the AIC that a transition period of 3 years from the date of publication be adopted.

At the end of the transition period, accreditation of laboratory to ISO/IEC 17025:2005 will not be recognised under the ILAC Arrangement.

ISO/ILAC 17025:2017 Transition Communiqué

ISO 15189 Communiqué

The initial Joint IAF-ILAC-ISO Communiqué on ISO 15189 accreditation was originally issued in 2009 to reinforce the fact that medical laboratories accredited to ISO 15189:2007 Medical laboratories – Particular requirements for quality and competence, do operate a recognised management system.  The Communiqué was revised in January 2015 to refer to the 2012 edition of ISO 15189.

Joint IAF-ILAC-ISO Communiqué on ISO 15189:2012

Joint IAF-ILAC-ISO Communiqué on ISO 15189:2012 – Press Release

ISO/IEC 17020 Communiqué

The Joint IAF-ILAC-ISO Communiqué on ISO/IEC 17020 accreditation was issued in 2013 to reinforce the fact that inspection bodies accredited to ISO/IEC 17020:2012 Conformity Assessment – Requirements for the operation of bodies performing inspection, do operate a recognised management system.

Joint IAF-ILAC-ISO Communiqué on ISO/IEC 17020:2012


Joint Declarations

The Joint BIPM-OIML-ILAC-ISO Declaration 2011 on metrological traceability builds on the tripartite statement issued by the BIPM, the OIML, and the ILAC in 2006 on the relevance of various international agreements on metrology to trade, legislation and standardization.



“Standards and accreditation provide a framework of trust for marketing and purchasing goods and services. In competitive and open markets, both government and business rely on trust to ensure a fair exchange of safe goods and services. The essential aspect of accreditation is that it underpins this confidence because it is a valid means of verifying claims about quality, performance, and competence. With the globalization not only of trade, but of many other issues such as climate change and environmental protection, security and health, trust must be achieved globally. The use of ISO International Standards as the reference criteria for accreditation and the development of the ILAC MRA and IAF MLA are therefore key to building trust across borders and promoting best practices in conformity assessment worldwide.

“Those having requirements for the assessment of compliance of products and services, whether in the regulated areas or for private transactions, have come to recognise the importance of credible accreditation programs that are based on internationally recognised standards and subject to mutual recognition. With restricted budgets, many government agencies can no longer do it all themselves; increasingly, they must rely on accredited conformity assessment to support their regulatory policies. Accreditation based on ISO standards and ILAC MRA and IAF MLA provides that and assists in meeting the commitments taken in the context of the World Trade Organisation (WTO) Agreement on Technical Barriers to Trade.”

– Alan Bryden, ISO Secretary-General


ISO Contact Details
Tel: 41 22 749 0111
Fax: 41 22 733 3430
Email: central@iso.org