Technical preparation
![](https://cdn.cbs.nl/images/32522f4961557a684374557a456a6c304149467474413d3d/720x480.jpg)
The third step towards working with CBS microdata consists of two parts:
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Preparing RA environment
CBS employees set up a project account for you within the secure RA environment, including access rights for researchers and reading rights to datasets. -
Optional: uploading external data or CBS research data
As an option, CBS can compile a customised dataset for you, or you provide us with an external dataset via our secure upload facility, which we can link to the CBS microdata for you.