– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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CCL Working Group on Strategic Planning (CCL-WG-S)

Terms of reference:

  • to collect and make available information giving evidence for the continuing importance of metrology in Length;

  • to collect and make freely available information from the Member NMIs of the CCL regarding long-term research and development activities in order to encourage collaboration and coordination;

  • to propose long-term plans for future activities of the CCL over the next ten to fifteen years and review and update these plans on a regular basis;

  • to collaborate with the CCTF to continue to establish and support optical frequency sources that are needed for dimensional metrology interferometers.


  • Dr Ismael Castelazo  (CENAM)


  • WG chairs
  • TG chairs
  • RMO representatives
  • Representatives of JWGFS
  • CCL Executive Secretary

  CCL: Upcoming meetings
11–15 June 2018: 17th meeting of the CCL and related meetings

CCL summary
General information
Members of the CCL
CCL key comparison portfolio
DimVIM: Multilingual CMC classification scheme
CCL publications and bibliography
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Key comparisons
Photographs of the CCL
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CCL-WG documents