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Safeguarding sensitive information is paramount, especially for organizations collaborating with the U.S. Department of Defense. The Cybersecurity Maturity Model Certification (CMMC) is a structured framework designed to standardize cybersecurity practices across the defense industry. With cyber threats increasingly targeting the supply chain, understanding what CMMC is and how it applies to your organization is no longer optional — it’s important for maintaining contract eligibility and safeguarding national security.
Defense contractors of all sizes, from prime vendors to small subcontractors, are now required to demonstrate adherence to specific CMMC compliance requirements before they can bid on or execute certain DoD contracts.
This guide explores CMMC compliance, its levels, the role of NIST SP 800-171, and actionable steps to achieve compliance.
The CMMC is a comprehensive model that enforces consistent cybersecurity practices to protect Controlled Unclassified Information (CUI) and Federal Contract Information (FCI). By consolidating multiple cybersecurity standards — most notably NIST SP 800-171 — into a single certification structure, it ensures uniform protection across the Defense Industrial Base (DIB).
The mandate stems from increasing threats to unclassified information, which, though not classified, often contains sensitive data about U.S. defense operations and technologies. Unauthorized access to such data can jeopardize military readiness and compromise national interests. Consequently, contractors throughout the supply chain must demonstrate alignment with the CMMC program to protect these assets.
The Department of Defense (DoD) launched the CMMC program in January 2020 as an assessment model to verify that defense contractors and subcontractors handling Controlled Unclassified Information (CUI) meet required cybersecurity standards. CMMC measures compliance with the security controls outlined in the NIST SP 800‑171 framework, which is already mandated by federal law and regulation. In November 2021, DoD released CMMC 2.0, streamlining requirements and aligning more directly with NIST SP 800‑171.
The program’s final rule was published on October 15, 2024 in 32 CFR Part 170, setting the stage for phased implementation across the Defense Industrial Base.
The program is rolling out in phases, and contractors must watch their CMMC status carefully to stay ahead of compliance deadlines. As of 2025, voluntary CMMC assessments are underway. The DoD will start including CMMC certification requirements in solicitations, with third-party certifications becoming a condition for award on most new DoD contracts in 2026.
The CMMC frameworks organize cybersecurity requirements into three maturity levels, each building upon the previous. These levels ensure contractors implement appropriate controls based on the sensitivity of the information they handle.
CMMC Level 1 (Foundational)
a. Focus: Basic safeguarding of Federal Contract Information.
b. Requirements: 15 practices aligned with FAR 52.204-21.
c. Assessment: Annual self-assessment required.
CMMC Level 2 (Advanced)
a. Focus: Protection of Controlled Unclassified Information (CUI).
b. Requirements: 110 practices drawn directly from NIST SP 800-171.
c. Assessment: Can require either self-assessments or third-party assessments depending on contract sensitivity.
d. Significance: Most defense contractors fall into this category, making CMMC Level 2 the most widely pursued certification.
Level 3 (Expert)
a. Focus: Safeguarding against advanced persistent threats (APTs).
b. Requirements: Builds upon CMMC Level 2 with additional controls from NIST SP 800-172.
c. Assessment: Conducted by the Defense Industrial Base Cybersecurity Assessment Center (DIBCAC).
Most contractors target CMMC Level 2, as it directly addresses CUI and forms the benchmark for eligibility in most defense contracts.
CMMC Level 2 certification is pivotal for organizations handling Controlled Unclassified Information (CUI). It requires full implementation of all 110 practices defined in NIST SP 800-171, covering access control, incident response, risk management, and system maintenance.
The cornerstone of the CMMC program is NIST SP 800-171, a federal standard outlining 110 security requirements for protecting CUI in non-federal systems. These requirements span 14 control families, including access control, incident response, and risk assessment.
Organizations familiar with NIST 800-171 terminology will recognize its close alignment with the CMMC program, although the latter formalizes verification through the CMMC Accreditation Body, or the CyberAB.
Meeting CMMC compliance requirements involves more than ticking boxes — it requires embedding cybersecurity into everyday operations. Organizations must:
The CyberAB plays a vital role in training assessors and standardizing the certification process, ensuring that evaluations are consistent and fair across the defense ecosystem.
Monitoring your CMMC status is essential — DoD continues to refine timelines and phased requirements.
Contractors pursuing CMMC Level 2 must stay vigilant to updates in NIST SP 800-171 and evolving CMMC compliance requirements. Failure to maintain accurate CMMC status could result in lost eligibility for critical contracts.
The Department of Defense relies on an extensive supply chain of prime contractors and subcontractors. This network is a prime target for cyberattacks, making standardized cybersecurity essential.
A successful certification hinges on proper preparation for CMMC Assessments. Key steps include:
Organizations that treat compliance as an ongoing discipline — rather than a one-time project — are best positioned to maintain CMMC Level 2 certification.
CloudFit Software specializes in guiding organizations through the complexities of the CMMC program. Our services include:
By leveraging CloudFit’s expertise, contractors can streamline the path to certification while focusing on their core missions.
Any prime or subcontractor working with the DoD that handles CUI or FCI must comply with the CMMC requirements specified in their contract. These obligations, enforced through DFARS clauses like 252.204‑7012, 7020, and 7021, make certification a contract award requirement — not an option.
CMMC Level 2 is directly based on the 110 controls in NIST SP 800-171. If you’re already aligned with NIST 800-171, you’re ahead — but you must still verify compliance through the assessment process.
The Cyber AB, formerly known as the CMMC Accreditation Body, is the DoD‑approved nonprofit that accredits CMMC Third‑Party Assessment Organizations (C3PAOs), certifies assessors, and manages official training partners. It also operates the CMMC Marketplace, where contractors can find accredited assessors.
For CMMC Level 2, third-party assessments occur every three years, with annual affirmations required in between. Maintaining CMMC status means continuous compliance — not just preparing for the audit window.
Failing a CMMC assessment means you cannot be awarded new DoD contracts that require certification at the time of award. While you may address findings, remediate deficiencies, and request reassessment, missing the CMMC compliance requirements before the bid or award deadline will result in immediate disqualification from that opportunity. In short — no certification, no contract.
Achieving compliance with the CMMC program is more than checking a box — it involves safeguarding the sensitive information that underpins U.S. national defense. By aligning with NIST SP 800-171 and pursuing CMMC Level 2 certification, contractors can secure their place in the defense marketplace, protect national interests, and strengthen the broader supply chain.
CloudFit’s easyCMMC service is one of the most affordable solutions on the market for achieving CMMC compliance. It’s a purpose-built, turnkey solution for small and mid-sized businesses that need to get certified quickly without breaking their budgets. Our team handles every step, from initial gap analysis to continuous monitoring, ensuring you’re always audit-ready.
Ready to achieve CMMC Level 2 compliance at the lowest cost available?
Learn more about CloudFit’s CMMC services and start your path to more affordable, hassle-free compliance today.
Sources:
Cybersecurity Maturity Model Certification Program Final Rule Published | U.S. DoD
Justin brings over 20 years of experience in cybersecurity, compliance, and risk management to CloudFit. As the Principal Program Manager for Information Security and Compliance, he leads efforts to align customer and internal programs with frameworks such as NIST, CMMC, and FedRAMP. Justin focuses on governance, policy development, and ensuring secure, compliant operations across CloudFit’s services. He also supports initiatives related to Security Operations Center (SOC) readiness and maintains CloudFit’s internal Risk Governance and Compliance resources to drive consistency across teams.