Working Group Members

Working Group of Member State Representatives (WG-MS)


Mrs Daniela Arruda Benjamin

Minister-Counsellor, Deputy delegate of Brazil to International Economic Organizations in Paris

Ambassade du Brésil à Paris


Mr Robert Gunn

Head of International

National Physical Laboratory

United Kingdom

BIPM contact

Mr Felipe Rojas Ceballos

Legal Adviser

Bureau international des poids et mesures


List of meetings

Meetings and related documents

Past Meeting

  • 18
  • February
  • 2021

Past Meeting

  • 16
  • October
  • 2020

Past Meeting

  • 18
  • October
  • 2019


Terms of reference

The terms of reference were agreed at a meeting of Member State Representatives in October 2019.

  1. Examine the roles, responsibilities and relations of the organs set forth under the Metre Convention;
  2. In light of the above, clarify how to best to distinguish the work done by the organization, in particular the "Technical/Laboratory" and "Secretariat/Administrative" aspects;
  3. Consider principles of clarity and transparency;
  4. Present appropriate documented input to assist Member States in their preparation for the 27th meeting of the CGPM.

membership wg-ms


The Working Group is intended to be inclusive; all Member State Representatives are welcome to participate in its activities.

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