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National Classifications

طبقه بندي مشاغل ايران بر اساس

Country / Area: Iran, Islamic Republic of

Classification category: Occupation classifications

General information
1 (a)Name of the current national classification (full name in official national languages and in English with acronyms in brackets, should be given) طبقه بندي مشاغل ايران بر اساس ISCO-1988
Iran Occupations Classification Based on the ISCO-1988
1 (b)In which language(s) is the classification available?Persian
1 (c)Can the classification (or information about it) be accessed on the Internet? If yes, please provide the URL.No
Classification structure
2 (a)Please describe the structure of the classification: How many levels does the classification have? (Please provide labels, such as “Division”, “Class”) How many categories exist at each level?The structure of the classification is hierarchical (1 to 4 digit codes). The national classification was revised based on the international classification 1988 version and its structure is like the international classification. Some classes were disintegrated and some others were merged just for covering the national requirements, but the structure of the international classification was preserved.

Number of categoriesDescriptionCode
11Major group1 digit
29Main group2 digits
118Minor group3 digits
371Job group4 digits

2 (b)Please provide examples of the coding system used at each level.
Science( mathematics, physics) and engineering professionals21
Physicians, chemists and other related professionals211
Physicians and astronomers2111
Other professionals24
Religious affairs professionals246
Islam religious affairs professionals2461
Religious affairs professionals of other religions2462
Relationship to international standards
3 (a)Is this classification based on (or linked to) an international standard classification? If yes, please describe.Yes, Iran classification was formulated based on the ISCO International Classification 1988.
3 (b)Is the classification structure identical to the international standard or, if not, how does it differ? (e.g. have additional levels been added to the international standard or have changes been made within the level of the international structure, such as aggregations or additional breakdowns)Iran classification is derived from the international classification. The classes of this classification is like the international classification and no changes occurred in its structure. Only the classes which have to be more detailed, the classes were detailed .The classes with no information were merged but there is no difference between the general structure of national classification and the international version.
3 (c)Please describe deviations from the international standard (in terms of structure, methodology or application rules). Please use examples, if a general statement is not possible.خير No
3 (d)At what level of the international standard can data be reported for international comparison? (Please provide examples of programmes / indicators if reporting takes place at different levels of the classification.)Reporting is done according to the comparative table until the 4 digit level. But data are usually reported at 2 digit level.
3 (e)If no links to international classifications exist or no international standard is used, please state if there are plans to use international norms in the future.There is a link between Iran and international classification and the national classification has a comparative table with international classification.
Classification uses
4 (a)Please state for which statistical purposes (surveys etc.) this classification is used and if there are users outside of the Statistical Office. Please indicate at which level the classification is used for data collection and for data publishing.The SCI uses this classification in the censuses and in the labor force and Household Income and Expenditure Surveys. 4 digit codes of classification are used in all surveys and censuses and 1 digit codes are used for data dissemination.
Ministry of Labor uses this classification for occupations data collection.
4 (b)Please give the names of institutions that use the classification for non-statistical purposes (as opposed to statistical purposes in question 4(a)). Also indicate the kind of use (e.g. tax offices, social security, customs, enterprise register, employment services, work permits etc.) 
4 (c)Please indicate if alternative classifications are used by other institutions of the economy. Are these classifications available and useful for the Statistical Office? 
Implementation / revision status
5 (a)Please state the date of the official adoption of the classification. If not yet adopted, please indicate the current state (e.g. in development, sent for approval, in printing, ready to be distributed etc.)National classification is based on the international classification 1988 version, and the expert group for the classifications is revising the national classification based on the new version.
5 (b)Please state the date of use of the classification for individual statistical programmes.In the 2011, Population and Housing Census, 2006 Population and Housing Census, Population 1996, Labor Force survey as of 1996 up to now, Establishment survey, 2002
5 (c)Are there existing plans for revision or update of the current classification?Now the SCI is revising the National Classification based on the International Standard Classification of Occupations 2008 version.
5 (d)Name of former (previous) national classification (full name in both national tongue and in English with acronyms in brackets, should be given)طبقه بندي مشاغل ايران بر اساس ISCO-1968] [
Occupation Classification in Iran is based on ISCO-1968
5 (e)Please describe the link of the former classification to international classificationsThe former classification was derived from the 1968 version of international classification.
5 (f)Please describe the structure of the former classification and indicate the number of items at each level of the classification. (similar to question 2(a))The levels of international classification were used for formulating the national classification.
5 (g)Do conversion tables exist between the former and current classification?بله Yes
5 (h)When was the former classification implemented?From 1986 to 1995
5 (i)Are statistical data still collected or published according to the former classification? Please indicate if this statistical data is collected or published by the Statistical Office or elsewhere.No
Supporting documents
6 (a)Have national explanatory notes and/or guidelines been elaborated?Yes, objectives of the classification, system of codes, and descriptive points are presented in the National Classification publication.
6 (b)Do correspondence tables exist between the national and the international classifications (if applicable)?Yes
6 (c)Are correspondence tables between alternative and current classification available (if applicable)?No
6 (d)Does a national coding index exist?بله Yes
6 (e)Is the classification available in electronic form? If yes, in which formats is it available?(e.g. PDF, TXT, Excel, XML)Yes, it is available in the form of coding software for using in surveys.
6 (f)Are the correspondence tables or indexes available in electronic form?No
Contact information
7 (a)Name of institution / office responsible for the development and maintenance of the classificationThe Statistical Centre of Iran
7 (b)Contact address, phone number, e-mail or website for public information and inquiry 
Other comments
9 (a)Please provide any other information on this classification that you consider relevant 

Source: UN questionnaire, 8/26/2012