> For the complete documentation index, see [llms.txt](https://autodesk.ifc-manual.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://autodesk.ifc-manual.com/revit/classifications/multiple-classifications.md).

# Multiple Classifications

Following shared parameters allow adding multiple classification systems during the IFC export. 

{% hint style="info" %}
The use of multiple classifications is restricted. IfcClassification attributes, including source, edition, edition date, name, description, location, and reference tokens are not supported and will be only available for the main classification. 
{% endhint %}

Shared parameters to be used for multiple classifications are: 

ClassificationCode

ClassificationCode(2) 

ClassificationCode(3) 

ClassificationCode(4) 

ClassificationCode(5) 

ClassificationCode(6) 

ClassificationCode(7) 

ClassificationCode(8) 

ClassificationCode(9) 

ClassificationCode(10)

{% hint style="info" %}
Note: ClassificationCode(1) does not exist. 
{% endhint %}

The syntax for specifying a classification is: 

**\[ClassificationName]Code:Title**

Example: \[Maturity]01:STATUS

<figure><img src="/files/F4G841CNxrybXh5ooAaR" alt=""><figcaption><p>Multiple Classifications in Revit</p></figcaption></figure>

<figure><img src="/files/KfMgp8UbXNwM3opqTCw3" alt=""><figcaption><p>Multiple Classifications in IFC</p></figcaption></figure>

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