Committee members

Joint Committee for Guides in Metrology (JCGM)


Dr M.J.T. Milton

Director of the BIPM

Bureau international des poids et mesures


Executive Secretary

Mr R. Sitton

Bureau international des poids et mesures


jcgm mission


The tasks of the JCGM are to maintain and promote the use of the Guide to the Expression of Uncertainty in Measurement (known as the GUM) and the International Vocabulary of Metrology – Basic and General Concepts and Associated Terms (known as the VIM). The JCGM has taken over responsibility for these two documents from ISO TAG 4, who originally published them under the auspices of the BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML.

The JCGM operates through two working groups: the JCGM-WG1, with responsibility for the GUM, and the JCGM-WG2, with responsiblity for the VIM.


JCGM Charter


List of meetings

Meetings and related documents