To meet the unique and evolving requirements of the United States Federal, State, Local, and Tribal governments, as well as contractors holding or processing data on behalf of the US Government, Microsoft offers the Office 365 Government GCC environment. Microsoft GCC for CMMC 2.0 is available through multiple channels including Volume Licensing, interested organizations go through a validation process to ensure eligibility before an environment is established. Trials are available to only US Government entities at this time.
CTI's LevelUp Microsoft GCC for CMMC 2.0 Process:
- Planning – Understanding what data is handled by the customer to determine the selection of GCC vs. GCC High. Understand the customer’s workflow, to determine with the customer which Microsoft services can help them meet organizational needs. Determine which Microsoft or Non-Microsoft Security Protection Assets should be used to meet CMMC Requirements.
- Implementation – Enable Microsoft Services needed to meet CMMC requirements, integrate non-Microsoft Security Protection Assets needed to meet CMMC requirements.
- Data Migration – Migrate data per the results from the planning and implementation discovery.
- Documentation – Provide a list of configured services and values with a detail mapping for configured services to CMMC practices.
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Compliance
Office 365 GCC High and DoD meet the compliance requirements for the following certifications and accreditations:
- Office 365 GCC High and DoD: Is assessed using the National Institute of Standards and Technology (NIST) Special Publication 800-800-53 controls at a FIPS 199 High Categorization.
- Office 365 DoD: The security controls and control enhancements for United States Department of Defense Cloud Computing Security Requirements Guide (SRG) for information up to Impact Level 5 (L5).
- Per the DoD requirements, only Department of Defense entities might purchase licenses for the Office 365 DoD environment that is certified as DoD SRG L5. Non-Department of Defense entities who meet the appropriate eligibility requirements might purchase licenses for the Office 365 GCC High environment that is assessed using NIST SP 800-53 controls at a FIPS 199 High Categorization and can demonstrate equivalency to IL4 or necessary inheritance for CMMC.
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File Sharing
You have multiple options for sharing files and folders in SharePoint and OneDrive. All the options are available in the GCC High and DoD environments. In addition, in GCC-High you will be able to share only with other organizations in GCC-High. Additionally, NON-GCC High email addresses attached to user profiles aren’t supported and won’t allow alert emails to be sent. For example, on premises User A is assigned a Gmail email address and then synced to an Azure GCC High organization. User A navigates to a library and creates an alert for any changes. The alert won’t be sent to the Gmail address.
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CMMC 2.0 Compliance FAQ
Q: When is the deadline for CMMC 2.0 compliance? A: The DoD’s final rule took effect on November 10, 2025. A phased rollout is currently underway, and CMMC requirements are appearing in new defense solicitations. Most contractors should aim to be fully compliant by 2026 to ensure eligibility for upcoming contract awards.
Yes, Microsoft GCC can meet CMMC 2.0 Level 2 requirements if it is properly configured to protect Controlled Unclassified Information (CUI). However, if your contract includes export-controlled data (ITAR or EAR), Microsoft and compliance experts generally recommend GCC High, as standard GCC does not provide the same contractual guarantees for US-sovereign data residency.
The primary difference is the “sovereignty” of the data. Microsoft GCC shares some infrastructure with the commercial cloud, while GCC High is a physically and logically isolated environment. GCC High is required for organizations that handle highly sensitive data subject to ITAR or those working directly with the Department of Defense (DoD) on high-level projects.
No. Purchasing a license for Microsoft GCC for CMMC 2.0 provides the platform for compliance, but you must still configure the 110 controls of NIST SP 800-171. Our LevelUp Process ensures that your environment is not just “ready” for compliance, but actively meets the necessary technical standards for your assessment.
The DoD’s final rule took effect on November 10, 2025. A phased rollout is currently underway, and CMMC requirements are appearing in new defense solicitations. Most contractors should aim to be fully compliant by 2026 to ensure eligibility for upcoming contract awards.