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Classifications and standards

In this section you can access our classifications and statistical standards. You can also find general information about classifications and standards, our review process, and contact information.

Classifications and related statistical standards

Select from a list of classifications and standards and find out about our geographic hierarchies.

What are statistical classifications and standards?

Find out what classifications and standards are and why we need them. Also get information about the coding process.

Classifications and standards currently under review

Find out which classifications and standards we’re reviewing and why.

Classification and standards review process

Find out how we carry out reviews of classifications and standards.

Classification Code Finder

Use the Classification Code Finder to classify your own responses using our standard classifications.

Download the Classification Coding System

Download and use the CCS tool to code commonly used standard classifications, including industry, occupation, and geographic coding.

Contact classifications and standards 

Ask us about classifications and standards.

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