INI
Japan Standard Occupational Classification - INI
The Japan Standard Occupational Classification is a statistical standard established by the Ministry of Internal Affairs and Communications, first set in 1960 and revised five times to reach the current 2009 version. It consists of three hierarchical levels: 12 major groups, 74 intermediate groups, and 329 minor groups, and is widely used for classifying occupations in statistical surveys such as the Population Census and Labour Force Survey. By providing an objective and unified understanding of occupations, it serves as an essential foundation for employment policy planning and labor market analysis.
Ministry of Internal Affairs and Communications
occupational classification
statistical standard
labor market
population census
[item.administrative-and-managerial]
code=A
slug=administrative-and-managerial
name=Administrative and Managerial Occupations
description=Classification for occupations engaged in administration and management.
[item.professional-and-engineering]
code=B
slug=professional-and-engineering
name=Professional and Engineering Occupations
description=Classification for occupations requiring professional and technical knowledge or skills.
[item.clerical]
code=C
slug=clerical
name=Clerical Occupations
description=Classification for occupations engaged in clerical work.
[item.sales]
code=D
slug=sales
name=Sales Occupations
description=Classification for occupations engaged in merchandise sales and business development.
[item.service]
code=E
slug=service
name=Service Occupations
description=Classification for occupations engaged in lifestyle-related and personal services.
[item.security]
code=F
slug=security
name=Security Occupations
description=Classification for occupations engaged in security and safety maintenance.
[item.agriculture-forestry-fishery]
code=G
slug=agriculture-forestry-fishery
name=Agriculture, Forestry and Fishery Occupations
description=Classification for occupations engaged in agriculture, forestry, and fishery work.
[item.manufacturing-process]
code=H
slug=manufacturing-process
name=Manufacturing Process Occupations
description=Classification for occupations engaged in manufacturing production processes.
[item.transport-and-machine-operation]
code=I
slug=transport-and-machine-operation
name=Transport and Machine Operation Occupations
description=Classification for occupations engaged in transportation and machine or equipment operation.
[item.carrying-cleaning-packaging]
code=J
slug=carrying-cleaning-packaging
name=Carrying, Cleaning and Packaging Occupations
description=Classification for occupations engaged in carrying, cleaning, and packaging work.
[item.construction-mining]
code=K
slug=construction-mining
name=Construction, Mining and Manufacturing Occupations
description=Classification for occupations engaged in construction, mining, and manufacturing work.
[item.unclassifiable]
code=L
slug=unclassifiable
name=Unclassifiable Occupations
description=Classification for occupations that do not belong to any of the above major groups.