CMMC Regulatory Timeline
Every major CMMC milestone from initial rulemaking to full enforcement — so you know exactly where we are and how much time you have left.
Full Level 2 Enforcement Deadline
November 1, 2026
231
days remaining (~8 months)
CMMC 1.0 Published
The Department of Defense released the initial Cybersecurity Maturity Model Certification (CMMC) framework with 5 maturity levels and 171 practices across 17 domains.
CMMC 2.0 Announced
DoD streamlined the framework from 5 levels to 3, aligning Level 2 directly with NIST SP 800-171 Rev 2's 110 controls. Eliminated CMMC-unique practices and reduced burden on small businesses.
CMMC Proposed Rule Published
The CMMC proposed rule (32 CFR Part 170) was published in the Federal Register, opening a 60-day public comment period. Over 2,500 comments were received from industry stakeholders.
NIST SP 800-171 Rev 3 Published
NIST released Revision 3 of SP 800-171, reorganizing controls and adding new requirements. CMMC Level 2 currently maps to Rev 2; DoD plans to transition to Rev 3 in a future rulemaking.
CMMC Final Rule Published
The CMMC final rule (32 CFR Part 170) was published in the Federal Register, establishing the program's regulatory foundation. Effective December 16, 2024.
CMMC Phase 1 Begins
Phase 1 implementation started — self-assessments are now required for CMMC Level 1 (Federal Contract Information) and select Level 2 contracts. Contractors must submit self-assessment scores to SPRS.
First C3PAOs Authorized
The Cyber AB (formerly the CMMC Accreditation Body) authorized the first Certified Third-Party Assessment Organizations (C3PAOs) to conduct official Level 2 assessments.
CMMC Phase 2 — C3PAO Assessments Begin
Phase 2 requires third-party C3PAO assessments for CMMC Level 2 certification on applicable contracts. This is the current phase — contractors handling CUI must demonstrate compliance through formal assessment.
Full CMMC Level 2 Enforcement
CMMC Level 2 certification becomes a requirement in all new DoD contracts involving CUI. Contractors without certification will be ineligible to bid on or perform these contracts.
CMMC in All Applicable DoD Contracts
CMMC requirements will be included in all applicable DoD contracts, including option periods and renewals. The full Defense Industrial Base must be compliant.
Expected Transition to NIST 800-171 Rev 3
DoD is expected to update CMMC Level 2 requirements to align with NIST SP 800-171 Revision 3, introducing reorganized control families and new security requirements.
Don't Wait Until It's Too Late
With only 231 days until full CMMC Level 2 enforcement, now is the time to assess your readiness. Start with a free 110-control self-assessment and real-time SPRS score.
Assess Your Readiness for Free