Understanding DFARS 7012 Flow-Down Requirements

Navigating the intricate landscape of government contracting means understanding its ever-evolving regulations. Defense Federal Acquisition Regulation Supplement (DFARS) clause 252.204-7012, commonly called DFARS 252.204-7012 or simply DFARS 7012, serves as the foundation for security and cybersecurity requirements for companies in the Defense Industrial Base (DIB).

In this blog, you will learn about crucial flow-down requirements of that clause. We’ll show how they are crafted to bolster cybersecurity, enhance supply chain risk management, and facilitate protection of covered defense information throughout a prime contractor’s multi-tiered network of suppliers and subcontractors. To grasp the real-world DFARS 7012 compliance implications for your organization, we’ll unpack DFARS 7012 and its overarching goals.

What Is DFARS 7012?

DFARS 7012 was designed to provide a framework for the protection of sensitive information known as Controlled Unclassified Information (CUI) within the DIB. As defined by the Defense Counterintelligence and Security Agency, “CUI is government-created or owned information that requires safeguarding or dissemination controls consistent with applicable laws, regulations, and government-wide policies.” As the name implies, CUI does not refer to classified information or data maintained within government agencies. The clause also requires contractors to rapidly report (within 72 hours) cyber incidents to DoD via DIBNet.

In many respects, DFARS 7012 and the forthcoming DFARS clause 252.204-7021 (DFARS 7021) that will implement the Cybersecurity Maturity Model Certification (CMMC) framework are similar in their overall goal of ensuring that DIB companies are DFARS compliant and adequately protect CUI from threat actors and cyber-attacks.

However, there are several key differences regarding the specificity of scope, contractual requirements, and most notably, compliance attestation. Beginning November 10, 2025, DoD will phase CMMC into solicitations and contracts over three years. Many organizations handling CUI will require a C3PAO-performed Level 2 certification; others may perform self-assessments as specified in 32 CFR Part 170

DFARS 252.204-7012, however, requires only that a contractor complete a self-attestation against the 110 controls defined within National Institute of Standards and Technology Special Publication 800-171 (NIST SP 800-171). Following contract award, the contractor must provide evidence that they – and all of their subcontractors – have fulfilled the NIST SP 800-171 controls or have a concrete plan to do so.

What Are Flow Down Requirements and Who Is Subjected to Them?

The awarded (prime) contractor assumes the responsibility for ensuring that its multi-tiered supply chain of subcontractors, vendors, and partners understand and execute the various DFARS 7012 requirements that apply to them. This includes placing relevant DFARS-compliant provisions in all subcontracts. Most importantly, DFARS CUI regulations require any company in the subcontractor supply chain that stores, handles, or transmits CUI must comply with NIST SP 800-171 in its entirety.

These DFARS 7012 requirements essentially “flow down” from the prime to its subcontractor supply chain, all of whom must comply with DFARS cybersecurity requirements, with the prime on the hook for enforcement. While it may seem redundant, flow-down requirements play a vital role in ensuring that CUI is protected wherever it travels and that DFARS cybersecurity requirements are consistently enforced amongst all relevant parties.

In a presentation in October 2018, the Department of Defense stated:

The contractor shall determine if the information required for subcontractor performance is, or retains its identity as, covered defense information and requires safeguarding. Flow down is a requirement of the terms of the contract with the Government, which must be enforced by the prime contractor as a result of compliance with these terms. If a subcontractor does not agree to comply with the terms of DFARS Clause 252.204–7012, then covered defense information shall not be shared with the subcontractor or otherwise reside on its information system.

What Happens If DFARS CUI Flow Down Requirements Are Not Fulfilled?

As with any instance where a DIB company fails to adhere to government-mandated flow-down requirements, penalties can be rather strict. This includes the following:

• Termination of contract
• Ineligibility for future contracts
• Legal fees, fines, and penalties, including those identified within the Department of Justice’s False Claims Act
• Reputational harm

Safeguarding CUI

To adequately safeguard CUI, NIST SP 800-171 provides 14 unique security families, each with controls (a total of 110) that must be implemented to fully protect CUI. The top-level breakdown of families and controls looks like this:

• Access Control (22 controls)
• Awareness and Training (3 controls)
• Audit and Accountability (9 controls)
• Configuration Management (9 controls)
• Identification and Authentication (11 controls)
• Incident Response (3 controls)
• Maintenance (6 controls)
• Media Protection (9 controls)
• Personnel Security (2 controls)
• Physical Protection (6 controls)
• Risk Assessment (3 controls)
• Security Assessment (4 controls)
• System and Communications Protection (16 controls)
• System and Information Integrity (7 controls)

The complexities of DFARS 7012 go beyond prime contractors simply adhering to set standards; they also must ensure that their entire multi-tiered network of subcontractors complies with DFARS CUI requirements. But the journey continues beyond merely understanding the 110 controls found in NIST SP 800-171; prime contractors must also have clear visibility across their entire supply chain to successfully meet DFARS 7012’s flow down requirements.

CMMC 2.0 and the Future of CUI Safeguarding

The landscape will continue to evolve with the inclusion of DFARS 252.204-7021 and its CMMC 2.0 framework in DoD contract solicitations. As of late 2025, the Department of Defense has finalized the rule implementing CMMC 2.0, with phased inclusion in new contracts beginning November 10, 2025.

While DFARS 7021 may ease some of the prime contractor’s burden by mandating third-party certification for many Defense Industrial Base (DIB) companies that store, handle, or transmit CUI, it also raises the bar for evaluation, enforcement, and accountability across the supply chain.

As the defense sector progresses toward widespread CMMC implementation expected by 2026, DFARS 7012 requirements remain firmly in place. In fact, DoD enforcement of DFARS 7012 and its flow-down obligations is likely to intensify during this transition period.

Every stakeholder in the DIB supply chain must remain informed, vigilant, and proactively committed to maintaining and demonstrating compliance, not just to win new contracts, but to preserve existing relationships and reduce cybersecurity risk.

If you need help with your CMMC 2.0 journey, and understanding what CUI is and how to handle it, reach out to us or visit our site and find out how our CMMC Ready Suite can help.