The question defense contractors ask when they first encounter CMMC requirements is often: what actually happens if we do not comply?
The answer is not abstract. There are specific, concrete consequences that attach to CMMC non-compliance at different stages — before contract award, during contract performance, and if misrepresentation is discovered. Understanding the full consequence picture is part of understanding why CMMC is a program to take seriously rather than manage around.
The most immediate and most common consequence of CMMC non-compliance is straightforward: you do not win the contract.
Under CMMC, contracting officers are required to verify a contractor's CMMC status before award. For contracts that include DFARS 252.204-7021, a contractor that cannot demonstrate the required CMMC level at the time of award is ineligible to receive the contract.
This consequence operates at two levels:
Visible non-compliance: A contractor with no SPRS submission, an expired affirmation, or a score below the minimum threshold (below 88 for Level 2 Conditional) is visibly non-compliant in the systems contracting officers review. These contractors are screened out before evaluation of technical proposals.
Phase-driven ineligibility: As CMMC phases advance, contracts that require C3PAO certification will move from Phase 1 (self-assessment sufficient) to Phase 2 and Phase 3 (C3PAO required). A contractor without a C3PAO certification during Phase 2 is ineligible for awards on contracts specifying Level 2 C3PAO, regardless of their self-assessment score.
The practical reality for contractors who delay their CMMC programs: during Phase 2 (November 2026 through November 2027), a growing portion of the Department of Defense (redesignated the Department of War by executive order, September 2025) (DoD) contract base will be inaccessible to organizations without C3PAO certifications. By Phase 4 (November 2028), full enforcement is in effect.
Non-compliance discovered during active contract performance creates a different set of consequences.
Under DFARS 252.204-7021, a contractor must maintain CMMC compliance throughout the period of contract performance, not just at award. If a contractor's compliance status lapses during performance — because an affirmation expired, because a significant technology change pushed the organization out of compliance, or because a security incident revealed gaps — the contractor is in breach of a contract term.
Consequences of mid-performance non-compliance can include:
Cure notice and cure period: The contracting officer may issue a cure notice requiring the contractor to restore compliant status within a defined period. Failure to cure can lead to termination.
Show cause notice: A more serious notice requiring the contractor to explain why the contract should not be terminated for default. This is issued when the contracting officer has reason to believe the contractor cannot or will not cure the deficiency.
Termination for default: The most severe administrative consequence short of debarment. A termination for default is a formal record that follows the contractor in the government's past performance systems and can affect future contract awards for years.
Withholding of payments: Contracting officers have authority to withhold contract payments when a contractor is not meeting contract terms. Non-compliance with cybersecurity requirements can trigger payment withholding.
For subcontractors, non-compliance creates a specific risk at the prime contractor level. Primes are required to verify subcontractor CMMC compliance before sharing covered data and to monitor ongoing compliance. A subcontractor that becomes non-compliant mid-performance is a compliance liability for the prime.
When a prime discovers that a subcontractor is not CMMC-compliant, the prime's options include:
In practice, primes under delivery pressure often choose the fastest solution: replacing the non-compliant subcontractor. For a small subcontractor, losing a subcontract mid-performance due to CMMC non-compliance can be financially significant and damages the prime relationship for future opportunities.
If a contractor was non-compliant but represented compliance — through a SPRS submission, an affirmation, or a proposal representation — the consequences extend beyond contract loss to civil liability.
Under the False Claims Act (31 U.S.C. § 3729), each payment received under a contract while knowingly non-compliant is a potential false claim. Damages are treble the actual damages plus civil penalties per claim.
The DoJ CMMC enforcement initiative is active. The qui tam mechanism allows any employee with firsthand knowledge of misrepresentation to file a lawsuit and receive 15-30% of the government's recovery. Former employees, disgruntled current employees, and consultants who performed compliance work are all potential relators.
The Aerojet Rocketdyne case ($9 million settlement in 2022) established the precedent. The settlement number in that case reflects a negotiated resolution; the potential exposure for organizations with higher contract values or longer periods of misrepresentation is higher.
False Claims Act liability is separate from and in addition to the contract consequences above. A contractor can face both termination of the contract and a civil FCA judgment.
The most severe administrative consequence available to the government is suspension or debarment from government contracting.
Suspension is a temporary exclusion from contracting, imposed when there is adequate evidence of a cause for debarment while an investigation is pending. A suspended contractor cannot receive new contracts or subcontracts from the federal government.
Debarment is a formal, longer-term exclusion from federal contracting. It is imposed by a debarring official based on a finding of cause, which can include fraud, False Claims Act violations, or other serious misconduct. Debarment periods typically range from three years and up.
Debarment is recorded in the System for Award Management (SAM.gov) and is visible to all contracting officers and prime contractors. A debarred company is effectively excluded from the federal market for the duration of the debarment.
For cybersecurity misrepresentation, the path to debarment typically runs through a False Claims Act settlement or judgment. When a contractor settles FCA allegations, the settlement may include debarment provisions or subsequent conduct restrictions. When the misconduct is severe and the contractor is unwilling to settle, the DoJ can pursue debarment as part of or following civil litigation.
Outside of formal legal and contractual consequences, CMMC non-compliance creates reputational damage that affects contractor relationships in ways that are hard to quantify but real.
Prime contractors check SPRS before awarding subcontracts. A missing, stale, or low SPRS score is visible to every prime contractor who searches for your CAGE code. Primes who need to demonstrate their own supply chain compliance are increasingly unwilling to work with subcontractors who have compliance questions.
Contracting officers talk. Program offices track contractor performance. A history of cybersecurity compliance issues — even short of formal default or debarment — affects past performance ratings and future award decisions.
For small and mid-sized contractors, reputation within a specific market segment or with a specific prime is often as valuable as any formal past performance record. Losing that relationship over CMMC non-compliance has costs that extend well beyond a single contract.
One of the most common consequences of delayed CMMC action is not legal — it is operational. Organizations that start their CMMC programs late discover that:
Organizations in the second pool during Phase 2 are not just non-compliant — they are simply ineligible. The consequence of delayed action is lost revenue, not regulatory penalty. That lost revenue, compounded across multiple contract opportunities over the Phase 2 and Phase 3 period, is the real cost of waiting.
Not every consequence is equally likely, and the severity of consequences scales with the nature of the non-compliance.
An organization with a slightly stale affirmation that reaffirms promptly when notified faces administrative correction, not FCA litigation. An organization with a missing SPRS submission that submits one accurately faces no consequences beyond prior ineligibility for specific awards.
The severe consequences — FCA liability, termination for default, debarment — attach to knowing misrepresentation that persists over time. A contractor that makes honest mistakes and corrects them promptly is in a fundamentally different legal and administrative position than one that knowingly maintains a false compliance record for years.
The highest-risk scenario: a security team that identified gaps and documented them internally, a senior official who signed an affirmation without reviewing those findings, and continued contract payments over an extended period. That is the Aerojet fact pattern. That is where the severe consequences live.
For the complete CMMC framework overview, see the CMMC 101: The Complete Guide to CMMC Compliance for Defense Contractors.
Related articles in this series:
Concerned about your current compliance posture and the exposure it creates? NR Labs provides CMMC gap assessments that give you an honest picture of where you stand and a clear path to certification. Contact us to get started.
Yes. If a contracting officer determines that a contractor is not meeting CMMC requirements specified in the contract, the government can pursue termination for default under FAR 49.401. This is more severe than a termination for convenience, as it can result in the contractor being liable for excess reprocurement costs and is reported in FAPIIS, affecting future contract eligibility.
Suspension is a temporary exclusion from government contracting, typically lasting 12 months while an investigation is pending. Debarment is a longer-term exclusion, typically lasting three years but potentially longer. Both are discretionary actions by the Suspending and Debarring Official, and both apply government-wide across all federal agencies, not just the agency that initiated the action.
Yes. Prime contractors are required to verify subcontractor CMMC compliance before sharing covered data. A subcontractor without the required CMMC level cannot receive CUI from a prime, effectively excluding them from team arrangements on contracts requiring CMMC. This creates both direct contract loss and indirect opportunity loss through team exclusion.
