When is the CMMC requirement date for defense contractors?

Defense contractors now have exactly 60 days until CMMC requirements begin appearing in new DoD contract solicitations on November 10, 2025. The CMMC requirement date timeline allows for self-attestation in the first phase, with Level 2 certifications required in subsequent contract awards based on program manager discretion. DoD estimates roughly 80,000 companies will need Level 2 certification and 1,500 will require Level 3. The CMMC requirement date implementation includes stricter POA&M closure requirements within six months, and contractors must provide annual NIST 800-171 compliance affirmations. Understanding the CMMC requirement date codification ensures defense contractors meet all regulatory obligations.