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About data / Classifications and standards

Classifications and standards

Information on the classifications and standards approved for use in National Statistics.

- Guide to classifications
Introductory information on classifications.

- Current standard classifications
The standard classifications approved for use in National Statistics including industrial, occupational and socio-economic classifications.

- Other standards
Other standards approved for use in National Statistics including ethnic groups, geographic standards and harmonised concepts and questions.

- International standard classifications
Links to international standard classifications including the International Classification of Diseases.

- Archived standard classifications
Previous versions of standard classifications including industrial and ethnic group classifications.

- Future developments
Work being done on developing and reviewing standard classifications.


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