ISIC is 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 (kind of activity units). The groups 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.
ISIC correspondences with Central Product Classification (CPC) and Standard International Trade Classification Revision 3 (SITC). The System of National Accounts (SNA) uses ISIC to describe economic activity breakdowns.
ISIC's hierarchical structure consists of 'Tabulation categories' (17) - one-letter alpha code, 'Divisions' (60) - 2-digit codes, 'Groups' (159) - 3-digit codes and 'Classes' (292) - 4-digit codes
ISIC tabulation categories and divisions
A Agriculture, hunting and forestry 01 Agriculture, hunting and related service activities 02 Forestry and logging and related service activities
B Fishing 05 Fishing, operation of fish hatcheries and fish farms; service activities incidental to fishing
C Mining and quarrying 10 Mining of coal and lignite; extraction of peat 11 Extraction of crude petroleum and natural gas; service activities incidental to oil and gas 12 Mining of uranium and thorium ores 13 Mining of metal ores 14 Other mining and quarrying
D Manufacturing 15 Manufacture of food products and beverages 16 Manufacture of tobacco products 17 Manufacture of textiles 18 Manufacture of wearing apparel; dressing and dying of fur 19 Tanning and dressing of leather; manufacture of luggage, handbags, saddlery, harness and footwear 20 Manufacture of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials 21 Manufacture of paper and paper products 22 Publishing, printing and reproduction of recorded media 23 Manufacture of coke, refined petroleum products and nuclear fuel 24 Manufacture of chemicals and chemicals products 25 Manufacture of rubber and plastic products 26 Manufacture of non-metalic mineral products 27 Manufacture of basic metals 28 Manufacture of fabricated metal products, except machinery and equipment 29 Manufacture of machinery and equipment n.e.c. 30 Manufacture of office, accounting and computing machinery 31 Manufacture of electrical machinery and apparatus n.e.c. 32 Manufacture of radio, television and communication equipment and apparatus 33 Manufacture of medical appliances, precision and optical instruments, watches and clocks 34 Manufacture of motor vehicles, trailers and semi-trailers 35 Manufacture of other transport equipment 36 Manufacture of furniture; manufacturing n.e.c. 37 Recycling
E Electricity, gas and water supply 40 Electricity, gas, steam and hot water supply 41 Collection, purification and distribution of water
F Construction 45 Construction
G Wholesale and retail trade; repair of motor vehicles and motorcycles and personal and household goods 50 Sale, maintenance and repair of motor vehicles and motorcycles, retail sale of automotive fuel 51 Wholesale trade and commission trade, except of motor vehicles and motorcycles 52 Retail trade; except of motor vehicles and motorcycles; repair of personal and household goods
H Hotels and restaurants 55 Hotels and restaurants
I Transport, storage and communications 60 Land transport; transport via pipelines 61 Water transport 62 Air transport 63 Supporting and auxiliary transport activities; activities of travel agents 64 Post and telecommunications
J Financial intermediation 65 Financial intermediation, except insurance and pension funds 66 Insurance and pension funds, except compulsory social security 67 Activities auxiliary to financial intermediation
K Real estate, renting and business activities 70 Real estate activities 71 Renting of machinery and equipment without operator 72 Computer and related activities 73 Research and development 74 Other business activities
L Public administration and defense; compulsory social security 75 Public administration and defense; compulsory social security
M Education 80 Education
N Health and social work 85 Health and social work
O Other community, social and personal service activities 90 Sewage and refuse disposal, sanitation and similar activities 91 Activities of membership organizations n.e.c. 92 Recreational, cultural and sporting activities 93 Other service activities
P Private households with employed persons 95 Private households with employed persons
Q Extraterritorial organizations and bodies 99 Extraterritorial organizations and bodies
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