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Analysis· 5 min read

CMMC Phase 2 has started — a 90-day readiness plan if you haven’t begun

Phase 1 self-assessment requirements have been appearing in DoD solicitations since November 2025, and C3PAO-assessed Level 2 becomes the default on November 10, 2026. Here is a realistic 90-day plan to get assessor-ready.

The CMMC rollout is no longer theoretical. Under the CMMC Program rule (32 CFR 170), Phase 1 has been live since November 10, 2025 — contracting officers can include the self-assessment and affirmation requirements in new solicitations. Phase 2 begins November 10, 2026, when a C3PAO-assessed Level 2 certificate becomes the default condition of award for contracts involving CUI, rolling out solicitation by solicitation through 2028.

The math is unforgiving: C3PAO assessment waitlists already run 6–9 months and growing, and only a small fraction of the roughly 80,000 contractors who need Level 2 had been certified as of the February 2026 Cyber AB town hall. If CUI touches your contracts, the question is not whether you need this — it is whether you start before or after the assessor calendars fill.

Here is a 90-day plan that front-loads the work that gates everything else.

Days 1–7 — Know your real number

You cannot plan against a score you are guessing at. Run the free Muster Score self-assessment under the DoD Assessment Methodology to see exactly where you stand across all 110 NIST SP 800-171 requirements, with the weighted 5/3/1-point deductions applied. No signup, no CUI — you describe your environment, never upload its contents.

Days 8–30 — Triage every gap

Sort your gaps into two buckets: POA&M-eligible versus must-fix-first. Most 1-point items can sit on a Plan of Action & Milestones for up to 180 days; a short list of requirements never can. The full POA&M eligibility rules — the 88-point conditional minimum, the six never-eligible requirements, and the 3.13.11 exception — decide what you can defer and what you must close before an assessment.

Days 31–60 — Draft the SSP and close must-fix gaps

Requirement 3.12.4 is the gate: without a current System Security Plan, no assessment can be completed at all, and it can never sit on a POA&M. Start your System Security Plan now — it is the single longest-lead artifact — and close the must-fix gaps your triage surfaced.

Days 61–90 — Get in the queue

Book your C3PAO while there is still calendar in 2026–2027, and finalize a POA&M that closes every remaining open item inside the 180-day window. See the full Phase 2 timeline for the per-phase detail.

One honest caveat that runs through all of this: what you produce are drafts you review, approve, and attest to — not a certification, and not an attestation we make for you. The judgment stays yours. That is exactly what keeps you on the right side of the False Claims Act.

Know your real SPRS score — free, no signup.

Get your free Muster Score