References
International Standard Industrial Classification of all Economic Activities, ST/ESA/STAT/Ser.M/4/REV.3, E.90.XVII.11
Classification internationale type, par industrie, de toutes les branches d'activitié économique, ST/ESA/STAT/Ser.M/4/REV.3, F.90.XVII.11
Clasificación Industrial Internacional Uniforme de todas las actividades económicas, ST/ESA/STAT/SER.M/4/Rev.3, S.90.XVII.11

Language availability: Arabic, Chinese, English, French, Russian, Spanish

Purpose
A standard classification of economic activities arranged so that entities can be classified according to the activity they carry out. The categories of ISIC at the most detailed level (classes) are delineated according to what is in most countries the customary combination of activities described in statistical units. The Tabulation Categories and Divisions, the successively broader levels of classification, combine the statistical units according to the character, technology, organization and financing of production. Wide use has been made of ISIC, both nationally and internationally, in classifying data according to kind of economic activity in the fields of population, production, employment, gross domestic product and other economic activities.

Custodian
UNSD
Economic Statistics and Classifications Section
Fax: 212 963 1374
Email: chl@un.org

Revision Status
Year of last revision: 1989
Years between revisions: Irregular
Revision number: Rev.3
Revision status remarks: ISIC (1948), ISIC Rev.1 (1958), ISIC Rev.2 (1968), ISIC Rev.3 (1989), Revision 2 Index has been issued in 1971, ISIC Rev. 3 amendments in 1994. ISIC Rev.3.1 update - effective May 2002, supersedes ISIC Rev.3.0.

Available indexes
Alphabetical index: Yes
Numeric index: Yes

Relationship with international classifications: Correspondences with Provisional CPC, CPC Version 1.0, SITC Rev.3, and HS
Other correspondences/links:
Correlation between revisions: Correspondence between ISIC Rev.2 and ISIC Rev.3
Remarks: Correspondences with Central Product Classification (CPC) and Standard International Trade Classification (SITC). The System of National Accounts (SNA) uses ISIC to describe economic activity breakdowns.

Classification Unit: Kind of activity

Classification Structure
Structure Level 1: Tabulation categories (N:one-letter alpha code- A to Q)
Structure Level 2: Divisions (N:2-digit codes)
Structure Level 3: Groups (N:3-digit codes)
Structure Level 4: Classes (N:4-digit codes)
Remarks: Hierarchical structure consisting of "Tabulation categories" (17), "Division" (60), "Groups" (159) and "Classes" (292)

Availability in machine readable form: ASCII, ACCESS DB in English, French and Spanish versions