The Countdown is Over: CMMC Final Rule Takes Effect November 10

November 5, 2025 by Joe Perez

After years of discussion, drafts, and delays, the wait is finally over — the Cybersecurity Maturity Model Certification (CMMC) Final Rule goes into effect on November 10, 2025. For manufacturers doing business with the Department of Defense (DoD), or hoping to break into the defense supply chain, this milestone is a non-negotiable turning point.

Cyber threats aren’t slowing down, and the DoD is drawing a firm line: manufacturers in the defense industrial base (DIB) must prove their ability to safeguard sensitive information. Whether you’re a prime contractor or a subcontractor somewhere along the supply chain, the message is clear; compliance is no longer optional.

What is CMMC? And Why Now?

The Cybersecurity Maturity Model Certification is the DoD’s structured approach to enhancing the security posture of its suppliers. The framework is designed to protect Federal Contract Information (FCI) and Controlled Unclassified Information (CUI) from persistent cyber threats.

CMMC was created to streamline and standardize cybersecurity across the defense supply chain. It consolidates various standards (like NIST SP 800-171) into a single certification requirement.

Now, with the Final Rule published and implementation timelines moving forward, the era of trust-based compliance is ending. Manufacturers will need to show real proof of cybersecurity readiness or risk losing valuable DoD contracts.

The Three Certification Levels (And What They Mean for You)

Depending on the type of data you handle and your role in a contract, you’ll fall into one of three CMMC levels:

Level 1 (Foundational)
For companies that only handle Federal Contract Information (FCI). Requires 17 basic cyber hygiene practices. Self-assessment required annually.
Level 2 (Advanced)
For companies that handle Controlled Unclassified Information (CUI). Aligns with NIST SP 800-171 with 110 security requirements. Third-party assessment required every 3 years.
Level 3 (Expert)
For companies working with high-value DoD programs. Incorporates NIST SP 800-172 standards. Government-led assessments required.

While most small and mid-sized manufacturers will fall under Level 1 or 2, the requirements are still extensive and require time, planning, and the right expertise to meet.

What Happens If You’re Not Compliant?

If you’re not on the path to compliance now, the consequences are severe:

Lost opportunities – You may be deemed ineligible to bid on or continue DoD contracts.
Disruption to existing work – Contracts could be paused or terminated if compliance isn’t demonstrated.
Supply chain setbacks – Prime contractors are increasingly requiring proof of CMMC readiness from their vendors.
Reputational damage – Non-compliance signals a weak security posture to both government and private sector clients.

This is not a one-size-fits-all mandate, but it is a universal requirement for anyone participating in the defense ecosystem.

Manufacturers Can Still Get Ahead

The good news? It’s not too late, but time is short. Manufacturers can still take meaningful steps to prepare:

Conduct a gap analysis to identify how far you are from your target CMMC level.
Develop a System Security Plan (SSP) and a Plan of Action & Milestones (POA&M) to track remediation steps.
Train internal teams on key cybersecurity practices and controls.
Engage trusted advisors with DoD and NIST expertise to guide your compliance journey.

Most importantly, don’t delay. Getting compliant can take months depending on your current environment and documentation.

Final Thoughts: Compliance is a Competitive Advantage

CMMC is more than a mandate — it’s a badge of trust and credibility. In a world where data breaches and nation-state cyberattacks are daily news, being compliant means being prepared. It also shows your clients, partners, and regulators that your operation is secure and worthy of doing business with.

The countdown is over. November 10 isn’t just another date on the calendar; it’s your chance to show the industry that you take cybersecurity seriously.