The United Nations Committee of Experts on International Statistical Classifications (UNCEISC) is the central coordination body for the work on international statistical classifications that are the responsibility of the Statistics Division, and for the coordination and review of other international statistical classifications that are the responsibility of other international organizations and that have been proposed for adoption by the Statistical Commission.

The UNCEISC was established by the Statistical Commission (E/2021/24-E/CN.3/2021/30, Decision 52/113) in March 2021. It was previously known as the Expert Group on International Statistical Classifications.

The Expert Group has the following active Task Teams (previously known as Technical Subgroups): the Standing Task Team on ISIC and CPC, the Task Team on Best Practice and the International Family of Classifications, the Task Team on SIEC (TT-SIEC), and the Task Team on the Revision of the Classification of the Functions of Government (TT-COFOG).

The following Task Teams and Technical Subgroups are no longer active after their mandates were completed.

The UNCEISC meets regularly to review progress made on classifications developments and revisions, assess current implementations and set priorities for future classifications work.

• List of UNCEISC meetings

• Classifications published by UNSD
• UNSD Classifications Registry
• Classifications on economic statistics
• Contact Us

• International Family of Classifications
• Committee of Experts on International Statistical Classifications
• Best Practices guidelines
• National classifications

• Regional Workshop on International Statistical Classifications (Chile, May 2025)
• UNCEISC meetings
• Classifications Workshops
• Other UNSD meetings
• International Classifications Sprint
• CSA 2.1 Global Consultation
• CPC Global consultation
• Revision of the Classifications of the Functions of Government (COFOG)
• Revision of the Standard International Energy Products Classification (SIEC)