– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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Joint Committee for Traceability in Laboratory Medicine (JCTLM)
Joint Committee:
  JCTLM – Joint Committee for Traceability in Laboratory Medicine
  JCTLM Executive Committee

JCTLM Working Groups:
  JCTLM-WG1 and WG2
  JCTLM-WG2: Reference Measurement Laboratories
The JCTLM was created in 2002 through a Declaration of Cooperation between the International Committee of Weights and Mesures (CIPM), the International Federation for Clinical Chemistry and Laboratory Medicine (IFCC), and the International Laboratory Accreditation Cooperation (ILAC) in response to the implementation of the European Community Directive 98/79/EC on in vitro medical devices. The Declaration of Cooperation was revised in 2012, following the revision of harmonized standards relating to higher order reference materials and methods.

The JCTLM Executive Committee oversees the operations of the JCTLM, and its Working Group 1 and Working Group 2 establish lists of available higher order reference materials, measurement procedures/methods and measurement laboratory services with respect to the technical basis laid down in the JCTLM Framework.

Dr Gary Myers
    American Association for Clinical Chemistry
    1850 K Street, Suite 625
    Washington, DC 200065
    United States of America
Dr Robert Wielgosz
    Bureau International des Poids et Mesures
    Pavillon de Breteuil
    F-92312 SÈVRES CEDEX


The presentations given at the following meetings are openly available:

The presentations given at the following workshops can be downloaded by participants (username and password required):

JCTLM Members' and Stakeholders' Meeting:

30 November to 1 December 2015 at the BIPM
Registration form
List of hotels near the BIPM
Dr Stéphanie Maniguet   BIPM

JCTLM WG on Traceability: Education and Promotion:

2 December 2015 (morning) at the BIPM
Terms of reference
Nomination for membership

JCTLM Database WGs (WG1 and WG2):

2 December 2015 at the BIPM
Registration form

The JCTLM Members' and Stakeholders' meeting will be held on 30 November and 1 December 2015. The agenda is available and registration open, with the workshop covering the following topics:

  • Session 1: Update on JCTLM activities
  • Session 2: JCTLM Member activities
  • Session 3: Developments in Traceability Requirements around the Globe
  • Session 4: Identifying future priorities in Traceability in Laboratory Medicine
  • Session 5: New Challenges for Traceability in Laboratory Medicine

The first meeting of the JCTLM Working Group on Traceability: Education and Promotion will be held on the morning of 2 December. The terms of references for the WG are available as well as a document on nomination for membership of the WG. Nominations for membership are to be received by the JCTLM Secretariat by 31 October 2015.

A meeting of the JCTLM Database WGs (WG1 and WG2) will be held on 2 December. This is a closed meeting, open to JCTLM Review Team Members and the JCTLM Executive Committee, who should register for the meeting using the form available.

The JCTLM Executive Committee will meet on 3 and 4 December 2015.

Metrological approaches to purity determination for Primary Reference Materials:

Criteria for nominated nucleic acid reference materials:

Traceability Statements - References to the JCTLM:

  • JCTLM-EXEC/15-03, 2015, 2 pp
    This document provides advice to manufacturers and others on the appropriate manner to make reference to JCTLM - listing of reference materials, methods and services in any documentation in which information on metrological traceability is included.
  Next meetings:
30 November to 1 December 2015: Meeting of JCTLM Members and Stakeholders
2 December 2015: Meeting of the JCTLM Working Groups
3–4 December 2015: Meeting of the JCTLM Executive Committee