A knowledge base article about Can I allocate resources outside of West US 2? provided by the UC Berkeley IT Service Hub - Knowledge Portal
Yes. Azure subscriptions are restricted to West US 2 by default. You can request an exception at https://forms.gle/oiZ59fDpAvx4maoz8
The info you will need to provide includes:
Protection Level of the data
Details on why you need the exception
Name of your subscription or subscription ID
Name of a resource group
If granted, the exception will be applied to the resource group you provide in the form. Any resources you need outside of West US 2 will need to be placed in this resource group.
You can find the name of your subscription or the subscription ID in the Overview section for the subscription (example below).