Liaison: International Laboratory Accreditation Cooperation (ILAC)


Formal relationship


JCTLM: Declaration of Cooperation between the BIPM, the IFCC and ILAC

Joint statements

2022 Joint Statement of Intent on the digital transformation in the international scientific and quality infrastructure
2020 Joint ILAC-CIPM communication regarding the accreditation of calibration and measurement services of national metrology institutes
2018 BIPM, OIML, ILAC and ISO: Joint declaration on metrological traceability

Archive of historical statements

2007 Calibration and Measurement Capabilities. A paper by the joint BIPM/ILAC working group
2006 BIPM, OIML, ILAC: Common statement and declaration on the relevance of various international agreements on metrology to trade, legislation and standardization
2005 Joint statement by the CIPM and ILAC on improving world-wide traceability and acceptance of measurements carried out within the CIPM MRA and the ILAC arrangement

Links between the BIPM and ILAC

  • A Joint CIPM/ILAC Working Group consisting of BIPM and ILAC members was established in view of the BIPM-ILAC MoU (Terms of reference of the Working Group). The group has produced a joint statement on the collaboration and roles of the two organizations;
  • The BIPM interacts with ILAC at senior level through annual bilateral and multilateral meetings at the BIPM (with ISO and the OIML);
  • The two organizations have mutual observer/liaison status at meetings;
  • ILAC is one of the partners in INetQI;
  • ILAC is a member of the JCGM;
  • ILAC is a major partner in the JCTLM;
  • The BIPM is an active participant in the ILAC Accreditation Committee (ILAC AIC) and particularly the AIC WG2;
  • The BIPM organizes consultation with NMIs (via RMOs) on key ILAC documents;
  • The BIPM and ILAC issue joint declarations and joint statements when appropriate.


ILAC is an international cooperation between the various laboratory accreditation schemes operated throughout the world. ILAC facilitates trade by promotion of the acceptance of accredited test and calibration results from more than 70 000 calibration and test laboratories worldwide.

The BIPM and ILAC cooperate to ensure efficient and effective dissemination of metrological traceability, particularly to the SI, and also address the special case of accredited national metrology laboratories.



Dr Anna Cypionka

International Liaison and Communication

Mr Chingis Kuanbayev

International Liaison and Communication

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