The BIPM is the international organization established by the Metre Convention in 1875, through which Member States act together on matters related to measurement science and measurement standards and the home of the International System of Units (SI) and the international reference time scale (UTC).

The principal task of the CIPM is to promote world-wide uniformity in units of measurement and it does this by direct action or by submitting draft resolutions to the General Conference. 
The CIPM meets every year (since 2011 in two sessions per year) and, among other matters, discusses reports presented to it by its Consultative Committees. Reports of the meetings of the CGPM, the CIPM, and all the Consultative Committees, are published by the BIPM.

CIPM Consultative Committees and their Working Groups 

Consultative Committee for Electricity and Magnetism (CCEM)

Official Observer

Consultative Committee for Amount of Substance: Metrology in Chemistry and Biology (CCQM)

Official Observer

• CCQM Working Group on Electrochemical Analysis (CCQM-EAWG)
• CCQM Working Group on Inorganic Analysis (CCQM-IAWG)
• CCQM Working Group on Gas Analysis (CCQM-GAWG)

Consultative Committee for Mass and Related Quantities (CCM):

• CCM Working Group on Density and Viscosity (CCM-WGDV)
• CCM Working Group on Force and Torque (CCM-WGFT)