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CCL-WG-S: Strategic planning
CCL summary
General information
CCL members
CCL working groups
CCL publications and bibliography
Recommended values of standard frequencies
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
Open access
CCL documents
CCL-CCTF documents
CCL-WG documents
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CCL working documents
CCL-CCTF documents
CCL-WG documents
MePWG documents
Direct access

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.

Chair: Dr A. Sacconi (INRIM)
Members: WG chairs, TG chairs, RMO representatives, representative of JWGFS, Dr Giardini, Dr Pekelsky, Dr Takatsuji, CCL Exceutive Secretary