Understanding GCC High Validation: What Defense Contractors Need to Know

For defense contractors handling Controlled Unclassified Information (CUI), moving to Microsoft 365 GCC High is a critical step toward meeting CMMC, DFARS, and ITAR compliance. But one often-overlooked part of the process is GCC High Validation—the prerequisite for obtaining licenses.

What Is GCC High Validation?
Before you can purchase Microsoft 365 GCC High licenses, your organization must go through Microsoft’s validation process. This isn’t just a formality—it’s Microsoft’s way of ensuring that only eligible organizations with valid regulatory requirements are granted access.

Who Needs to Validate?
Entities involved in defense, aerospace, or government work that require compliance with:

  • DFARS 7012

  • NIST SP 800-171

  • ITAR (International Traffic in Arms Regulations)

  • CMMC Level 2 or higher


…will typically need GCC High—and therefore must pass validation.

What the Validation Process Involves
Microsoft’s validation involves documentation review and a business justification. You’ll need to demonstrate:

  • Your organization’s involvement with the DoD or Federal government

  • A valid requirement for handling CUI, ITAR, or export-controlled data

  • Proof of existing contracts or pending awards that necessitate a secure environment


Don’t Let Validation Delay Your Migration
Failing to plan for validation can stall your project timeline. Fortunately, expert-led GCC High migration services not only assist with technical execution but also help navigate the validation process—ensuring you're positioned for a successful start.

GCC High validation is your gateway to a compliant Microsoft environment. Address it early, and you’ll avoid costly delays later in your journey to full CMMC alignment.

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