# Import

Imports can be performed on existing Code Systems by importing a Delta release.

{% hint style="info" %}
Snowray supports the [SNOMED CT Release Format 2](https://confluence.ihtsdotools.org/display/DOCGLOSS/SNOMED+CT+Release+Format+2).
{% endhint %}

The import functionality can be accessed from the selected resource's overview page by pressing the![](https://3339347079-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FknFjIvUw61sFugTrkt4L%2Fuploads%2FpaSVei5lTYFgyKhCNCL1%2Fimport_rf2_button.png?alt=media)button located in the upper right corner.

Users have two options to specify the import file in the import wizard: either by clicking in the import area and using the selector, or by drag and dropping it to the designated area.

![SNOMED CT RF2 Import Wizard](https://3339347079-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FknFjIvUw61sFugTrkt4L%2Fuploads%2FoJtjzBswdoFeUczL62Vz%2Fsnomed_rf2_import_wizard.png?alt=media\&token=20453c92-4778-4d26-8551-f9879d2e04e3)

{% hint style="success" %}
After clicking the Next button, the import will be performed to the selected Code System.
{% endhint %}
