The tasks of the JCGM are: to promote the use of the Guide to the Expression of Uncertainty in Measurement (known as the GUM); to prepare supplemental guides for its broad application; and to revise and promote the use of the International Vocabulary of Basic and General Terms in Metrology (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 chairman of the JCGM is the Director of the BIPM.

	Chairman:	Prof. A.J. Wallard Bureau International des Poids et Mesures Pavillon de Breteuil F-92312 SÈVRES CEDEX France
Member organizations:
	BIPM	Bureau International des Poids et Mesures
	IEC	International Electrotechnical Commission
	IFCC	International Federation for Clinical Chemistry and Laboratory Medicine
	ISO	International Organization for Standardization
	IUPAC	International Organization for Pure and Applied Chemistry
	IUPAP	International Organization for Pure and Applied Physics
	OIML	International Organization of Legal Metrology
	ILAC	International Laboratory Accreditation Cooperation