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Related Notice: INFOSEC ALERT - NOTICE TO THE DEFENSE INDUSTRIAL BASE *UPDATED* Title: UPDATE - Cybersecurity Maturity Model Certification (CMMC) 2.0 Implementation SPECIAL NOTICE: Cybersecurity Maturity Model Certification (CMMC) Program Implementation UPDATE #3 Federal Organization Issuing Notice: U.S. Army Corps of Engineers (USACE), Headquarters, Directorate of Contracting Description: DoD published the final CMMC rule on September 10, 2025, ref. 90 Federal Register (FR) 43560, with an effective date of November 10, 2025 . This rule amends the Defense Federal Acquisition Regulation Supplement (DFARS) to incorporate CMMC requirements and partially implement Section 1648 of the FY20 NDAA, which directed the Secretary of Defense to develop a consistent, comprehensive framework to enhance cybersecurity for the Defense Industrial Base (DIB). The rule adds a new solicitation provision (252.204-7025, Notice of Cybersecurity Maturity Model Certification Level Requirements ) addressing CMMC pre-award requirements, and revises the existing contract clause (252.204-7021, Contractor Compliance with the Cybersecurity Maturity Model Certification Level Requirement[s]) to address new CMMC post-award requirements. DoD will implement CMMC in four phases: Phase 1 begins on November 10, 2025 . Phase 2 begins on November 10, 2026 . Phase 3 begins on November 10, 2027 . Phase 4, the final phase, begins on November 10, 2028 . DoD’s CMMC Program mandates that all organizations handling Federal Contract Information (FCI) or Controlled Unclassified Information (CUI) maintain specific cybersecurity maturity levels to protect sensitive data. CMMC provides a consistent methodology to assess compliance with cybersecurity requirements and standards set forth in the 48 CFR 52.204-21; National Institute of Standards and Technology (NIST) Special Publication (SP) 800-171, Basic Safeguarding of Covered Contractor Information Systems. As a reminder, CMMC focuses on organizations and systems that: process, store, or transmit FCI or CUI, provide security for those systems, or are not logically or physically isolated from those systems. CMMC safeguards apply to prime contractors and subcontractors at all tiers but are always based on sensitivity of the information. For example, CUI kept in paper form only does require physical safeguards yet does NOT trigger CMMC. For reference, the updated DFARS is available on DoD’s Defense Pricing, Contracting, and Acquisition Policy (DPCAP) website: https://www.acq.osd.mil/dpap/dars/change_notices.html . Recommended Contractor Actions Now: CHANGE = In order to incorporate late breaking changes to the CMMC program, USACE will hold an INFOSEC Webinar ( https://events.dod.teams.microsoft.us/event/1b6a9efc-7c83-45b7-a238-8da725f79253@fc4d76ba-f17c-4c50-b9a7-8f3163d27582). NOTE: The webinar, previously scheduled for 15 OCT 2025, has been postponed due to a lapse in appropriations. We will reschedule once we have an approved CRA/budget and funding. Future date is TBD but will be communicated through SAM.gov. Department of War CMMC resources are available at https://dodcio.defense.gov/cmmc/Resources-Documentation/ Ensure your current cybersecurity posture aligns with contractual requirements related to NIST SP 800‑171 controls. Follows all steps (https://piee.eb.mil/xhtml/unauth/web/homepage/vendorGettingStartedHelp.xhtml#step6) to use Procurement Integrated Enterprise Environment (PIEE) applications, to secure access to the Supplier Performance Risk System (SPRS) module, and post a current self-assessment score in SPRS. Monitor updates from DoD, DPCAP, and SAM.gov for USACE Special Notices, official timelines and certification requirement updates. Comply with current DFARS 252.204-7012 requirements to report cyber incidents to DoD within 72 hours of discovery, using DoD’s Cyber Crime Center (DC3) portal at: https://dibnet.dod.mil. Important Disclaimers: This notice is for INFORMATION ONLY and does not impose new requirements . This notice does not create any rights/benefits enforceable by law against the U.S. Government. Questions and Resources: For USACE solicitations: Contracting Officer/Contract Specialist listed on a SAM.gov post. CMMC Program Resources: https://www.acq.osd.mil/cmmc/ SPRS Training Classes and Tutorials: https://www.sprs.csd.disa.mil/webtrain.htm Regulatory References: 32 CFR Part 170 (https://www.ecfr.gov/current/title-32/subtitle-A/chapter-I/subchapter-G/part-170) NOTICE: THE CONTENTS OF THIS PUBLICATION DOES NOT HAVE THE FORCE OR EFFECT OF LAW AND IS NOT MEANT TO BIND THE PUBLIC OR GOVERNMENT IN ANY WAY. THIS NOTIFICATION IS SOLELY FOR INFORMATIONAL PURPOSES ONLY.