New DFARS Rule: CMMC Certification Becomes Mandatory for Defense Contracts Starting November 10
Introduction
Starting November 10, 2025, a critical new Defense Federal Acquisition Regulation Supplement (DFARS) rule officially makes Cybersecurity Maturity Model Certification (CMMC) mandatory for most Department of Defense (DoD) contracts. This milestone marks a major shift in defense procurement , cybersecurity certification is no longer voluntary but a binding contractual requirement that affects all tiers of the defense industrial base.
What This Means for You
This rule means that if you want to win or keep a defense contract, you must show proof that your company meets cybersecurity standards under CMMC (Cybersecurity Maturity Model Certification).
It means: You can’t compete for or keep defense contracts unless your company proves CMMC compliance.
Three CMMC Levels Explained
Nearly all DoD contracts, except those solely for commercially available off-the-shelf (COTS) items, will require at least Level 1 certification.
Why Act Now?
The Department of Defense is introducing CMMC in phases, but waiting to prepare can put your business at serious risk. Since there are only a limited number of certified assessors available, companies that delay may find themselves stuck at the end of a long waiting list. This could make it difficult or even impossible to get certified in time to win new contracts.
It’s also not just about future opportunities. If you cannot show proof of compliance when asked, you could lose the contracts you already have. At Level 1, companies must update their compliance status every year in SPRS, and at higher levels, outside audits are required on an ongoing basis. Missing these steps could lead to contracts being delayed, denied, or even interrupted.
In addition, prime contractors now have the responsibility to verify that their subcontractors are compliant. That means if your company is not certified, you may be replaced with another subcontractor that already meets the requirements.
It means: Acting now is critical to protect both current and future DoD business.
Practical Steps for Contractors
Recommended 60-/90-/180-day action plan
Stay Ahead with Contragenix
Navigating these new cybersecurity compliance requirements can be daunting. Contragenix specializes in guiding federal contractors through CMMC certification and ongoing compliance to protect your eligibility and competitive position. Don’t wait until November 10 reach out to Contragenix today to start your preparation and safeguard your defense contracts..