International Standard Industrial Classification of All Economic Activities (ISIC), Rev.4

image of International Standard Industrial Classification of All Economic Activities (ISIC), Rev.4
The International Standard Industrial Classification of all Economic Activities (ISIC) is the international reference classification of productive economic activities. The publication's main purpose is to provide a set of activity categories that can be utilized for the production of statistics according to activity, i.e., production and national income, economic, demographic, and social statistics. This is an important tool for comparing statistical data on economic activities at the international level.



Support for ISIC users

The United Nations Statistics Division is responsible for the development and maintenance of ISIC, Rev.4. The developers of national activity classifications and other institutions using ISIC may find it in their interest to establish contact with the Statistics Division. Users of ISIC may thus receive notification about plans for updates or revisions, information concerning interpretations and rulings, and general technical support in applying the classification. Users are encouraged to bring to the attention of the Statistics Division any difficulties they encounter in the implementation of ISIC. They are also encouraged to request clarification, share their experience and remarks with regard to the adequacy of the classification, and provide ideas or proposals for enhancing its usefulness.


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