The First 100 Days of CMMC And What Comes Next

NATIONAL DEFENSE MAGAZINE By Ryan Heidorn

“The first 100 days of CMMC were never meant to be dramatic. The signal lies not in what happened immediately, but what is now unavoidable.

In its first year, expect imperfect translation, conservative interpretation and inconsistent execution. These are not signs of failure; they are signs that CMMC has moved from policy theory into operational reality.”

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“Following a multi-year rulemaking process, the Defense Department’s Cybersecurity Maturity Model Certification program crossed the regulatory finish line on Nov. 10.

For much of the defense industrial base, that moment carried a simple question — now that CMMC had moved from concept to reality, what would change first?

In the weeks that followed, there was no sudden surge of solicitations carrying CMMC requirements and no visible disruption to contracting operations.

Immediate disruption, however, was never the signal to watch. Nov. 10 was not a switch-flip moment where every contract suddenly changed, but the final regulatory step that collapsed uncertainty into inevitability, transforming CMMC from a long-debated future requirement into a permanent feature of defense acquisition.

The absence of visible disruption in the first weeks of CMMC was not surprising. What had changed was certainty — that a verified cybersecurity posture is now a condition of doing business with the department, not a sudden wave of enforcement actions.

For organizations that had already leaned into existing cybersecurity requirements, this marked a shift from designing for compliance to collecting, validating and organizing objective evidence in preparation for assessment.

For those that had maintained a wait-and-see approach, November carried a tangible cost. Qualified service providers and third-party assessors were already in high demand, and the timeline to move from minimal readiness to assessment-ready — often 12 to 18 months — remained unchanged. Organizations that delayed action risked entering 2026 at a competitive disadvantage.

Those early weeks began to expose which organizations had established effective operational governance, and which had deferred ownership decisions or assumed accountability would come later.

By the second month, pressure began to surface. This didn’t stem from deadlines, but from supply chain dynamics.

Prime contractors began communicating expectations to their supplier bases, asking whether organizations were prepared and what actions were underway. Under Defense Federal Acquisition Regulation Supplement 252.204-7021, primes must ensure that subcontractors handling federal contract information or controlled unclassified information hold a current CMMC certificate or status at the required level prior to award.

An unprepared supplier base can undermine performance or expose the prime to risk, driving urgency well before solicitations appear. Because primes do not know in advance which contracts will include CMMC requirements or at what level, ensuring preparation for all potential suppliers must happen ahead of demand.

Organizations that move the fastest prioritize repeatable processes and clear ownership rather than one-time remediation. One-off fixes may satisfy a checklist, but repeatable processes are what stand up to verification.

By the 96-day mark, a clear divide began to emerge between organizations that could say they had implemented the requirements and those that could withstand scrutiny. Proving compliance is not a step that occurs after implementation — it is a permanent operating condition.

In practice, CMMC readiness is rarely constrained by technology. Documentation, consistency and governance are more often the limiting factors. Security tooling without evidence of governance becomes invisible during assessment.

Critics of CMMC 2.0 have pointed to its shift away from maturity levels toward more blunt enforcement of existing requirements. But demonstrating conformity to the many perform-type assessment objectives in Level 2 requires operational maturity, not just tools.

Self-attestation has repeatedly failed to produce durable cybersecurity outcomes. Verification is therefore inevitable, and it is quickly becoming the standard currency of trust.

This model is not unique to defense and will propagate into other regulated ecosystems. The scale of this shift is significant.

The next phase will test operational discipline. Rather than a single enforcement trigger, the final rule embeds CMMC into acquisition through multiple discretionary decision points exercised by program offices and requiring activities. This structure makes uniform application unlikely and accelerates urgency unevenly across the market as the rule integrates into real acquisition workflows.

Some organizations will face intense pressure quickly, while others may feel little immediate impact. That inconsistency is not evidence of failure, but it reflects a program being applied inside day-to-day acquisition activity with varying levels of risk tolerance, mission criticality and data sensitivity.

Supply chain pressure will continue to concentrate where mission impact is high, data sensitivity is significant and the pool of qualified suppliers is limited. This asymmetry determines who feels pressure first and who has time to adapt.

Demand for third-party certification assessments will continue to grow, exposing capacity constraints not only among assessors but also across the broader implementation ecosystem. Organizations that wait to see a Level 2 certification requirement in a solicitation may find themselves competing for limited resources on timelines that cannot be compressed.

CMMC shifts accountability away from point-in-time compliance events toward continuous operational discipline. The pre-CMMC mindset no longer holds. Discrepancies between paperwork and practice are already the most common reason for those “Not Met” determinations during assessment.

Friction in the early rollout is already acting like a sorting mechanism, distinguishing organizations that operationalize compliance from those that rely on static documentation.

The first 100 days of CMMC were never meant to be dramatic. The signal lies not in what happened immediately, but what is now unavoidable.

In its first year, expect imperfect translation, conservative interpretation and inconsistent execution. These are not signs of failure; they are signs that CMMC has moved from policy theory into operational reality.”

Ryan Heidorn is chief technology officer at C3 Integrated Solutions.