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CCL: Consultative Committee for Length
CCL summary
General information
CCL strategy
CCL members
CCL working groups
CCL publications and bibliography
CCL key comparison portfolio
DimVIM: Multilingual CMC classification scheme
Presentation by Dr Sacconi at the 24th meeting of the CGPM
Photographs of the CCL
Key comparisons
Related articles
Open access
CCL documents
WGFS documents
CCL-WG documents
  Working documents
CCL working documents
CCL-WG documents
CCL_Archive documents
MePWG documents
Direct access
in French: Comité consultatif des longueurs
The Consultative Committee for the Definition of the Metre (CCDM) was set up in 1952. Its name was changed to Consultative Committee for Length by the CIPM in 1997.

Present activities concern matters related to the definition and realization of the metre, practical length and angle measurement, and advice to the CIPM in the field of length metrology.

Dr A. Sacconi
I.N.RI.M. Consultant, Former I.N.RI.M. Scientific Director 
Istituto Nazionale di Ricerca Metrologica 
Via Vinadio 6 
I-10138  Turin 
Executive Secretary:
Dr L. Robertsson
Bureau International des Poids et Mesures 
Pavillon de Breteuil 
92312  Sèvres 

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CCL strategy – Summary

[See also the full CCL strategy document]
  Criteria for membership of the CCL
Rules of procedure for the CCs and their WGs
Directory of Consultative Committees