– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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International Committee for Weights and Measures (CIPM)
Year Recommendation Title Domain
Year Recommendation Title Domain
2015 Recommendation 1 (CI-2015) CIPM Recommendation to NMIs on managing the consequences of the corrections to the BIPM "as-maintained" mass unit  M 
2015 Recommendation 2 (CI-2015) Updates to the list of standard frequencies  L&TF 
2013 Recommendation 1 (CI-2013) Updates to the list of standard frequencies  L&TF 
2009 Recommendation 1 (CI-2009) Concerning adoption of a common terrestrial reference system by the CGPM  TF 
2009 Recommendation 2 (CI-2009) Updates to the list of standard frequencies  L&TF 
2009 Recommendation 3 (CI-2009) Alignment of geodetic references and synchronization of time references to international standards  TF 
2009 Recommendation 4 (CI-2009) On the weakness of the present definition of UTC  TF 
2007 Recommendation 1 (CI-2007) Revision of the Mise en pratique list of recommended radiations  L 
2007 Recommendation 2 (CI-2007) On the value and uncertainty of unstabilized He-Ne lasers  L 
2006 Recommendation 1 (CI-2006) Concerning secondary representations of the second  TF 
2006 Recommendation 2 (CI-2006) Coordination of the development of advanced time and frequency transfer techniques  TF 
2005 Recommendation 1 (CI-2005) Preparative steps towards new definitions of the kilogram, the ampere, the kelvin and the mole in terms of fundamental constants  U 
2005 Recommendation 2 (CI-2005) Clarification of the definition of the kelvin, unit of thermodynamic temperature  T 
2005 Recommendation 3 (CI-2005) Revision of the Mise en pratique list of recommended radiations  L 
2004 Recommendation 1 (CI-2004) On the relationship between national metrology institutes (NMIs) and nationally recognised accreditation bodies (NABs)  N/A 
2003 Recommendation 1 (CI-2003) Revision of the Mise en Pratique list of recommended radiations  L 
2003 Recommendation 2 (CI-2003) Symbol for the decimal marker in the International System of Units (SI)  N/A 
2002 Recommendation 1 (CI-2002) Revision of the practical realization of the definition of the metre  L 
2002 Recommendation 2 (CI-2002) Dose equivalent  RI 
2002 Recommendation 3 (CI-2002) On the Avogadro constant  M 
2001 Recommendation 1 (CI-2001) The neper and the bel  U 
2000 Recommendation 1 (CI-2000) Extension of the International Temperature Scale below 0.65 K  T 
1999 Recommendation 1 (CI-1999) Future global navigation satellite systems  TF 
1997 Recommendation 1 (CI-1997) Revision of the practical realization of the definition of the metre  L 
1997 Recommendation 2 (CI-1997) Metrology in chemistry  QM 
1996 Recommendation 1 (CI-1996) Coordination of satellite systems providing timing  TF 
1996 Recommendation 2 (CI-1996) Binary mutliples of units used in information technology  U 
1996 Recommendation 3 (CI-1996) Temperature scale below 1 K  T 
1993 Recommendation 1 (CI-1993) Accuracy of primary frequency standards  TF 
1993 Recommendation 2 (CI-1993) Timing of millisecond pulsars  TF 
1993 Recommendation 3 (CI-1993) Clock comparison by satellite laser techniques  TF 
1993 Recommendation 4 (CI-1993) Monitoring the stability of the international prototype of the kilogram  M 
1993 Recommendation 5 (CI-1993) Thermodynamic temperature measurements  T 
1992 Recommendation 1 (CI-1992) Worldwide recognition of the results of comparisons of measurement standards  N/A 
1992 Recommendation 2 (CI-1992) The need for long-term metrological research  N/A 
1992 Recommendation 3 (CI-1992) Revision of the mise en pratique of the definition of the metre  L 
1989 Recommendation 1 (CI-1989) Synchronization of UTC(k) and UTC  TF 
1989 Recommendation 2 (CI-1989) Improvement of the frequency accuracy of primary standards  TF 
1989 Recommendation 3 (CI-1989) Reference coordinates of antennas  TF 
1989 Recommendation 4 (CI-1989) Installation of clocks at the BIPM  TF 
1989 Recommendation 5 (CI-1989) The International Temperature Scale of 1990  T 
1988 Recommendation 1 (CI-1988) Representation of the volt by means of the Josephson effect  EM 
1988 Recommendation 2 (CI-1988) Representation of the ohm by means of the quantum Hall effect  EM 
1988 Recommendation 3 (CI-1988) Preparation of the International Temperature Scale of 1990 (ITS-90)  T 
1986 Recommendation 1 (CI-1986) Expression des incertitudes dans les travaux effectués sous les auspices du CIPM  N/A 
1986 Recommendation 2 (CI-1986) Analyse des résultats des comparaisons internationales  N/A 
1984 Recommendation 1 (CI-1984) Concerning the sievert  U 
1983 Recommendation 1 (CI-1983) Mise en pratique de la définition du mètre  L 
1981 Recommendation 1 (CI-1981) Expression des incertitudes expérimentales  N/A 
1980 Recommendation 1 (CI-1980) SI supplementary units (radian and steradian)  U 
1972 Recommendation 1 (1972) Efficacités lumineuses relatives spectrales en vision photopique [V(lambda)]  PR 
1972 Recommendation 2 (1972) Réseau Gravimétrique International Unifié 1971 (IGSN-71)  M 
1969 Recommendation 1 (1969) Système International d'Unités, Rules for application of Resolution 12 of the 11th CGPM (1960)  U 
1967 Recommendation 2 (1967) Decimal multiples and submultiples of the unit of mass  U 
1963 Recommendation 1 (1963) Étalons secondaires de longueur d'onde  L 
1963 Recommendation 2 (1963) Unité spéciale pour l'activité (curie)  U 
1961 Recommendation (1961) Cubic decimetre and litre  U 
Summary
General information
Consultative Committees
CIPM Sub-Committees and ad hoc Groups
CIPM publications
Strategic planning: BIPM and Consultative Committees
Joint Working Groups
CIPM election process
ad hoc Working Group on Governance
Members of the CIPM
Photographs of the CIPM
CIPM Decisions and Recommendations