CMMC
DoD certification model for DIB cybersecurity maturity levels
PMBOK
Global standard for project management practices and governance
Quick Verdict
CMMC mandates cybersecurity certification for DoD contractors protecting FCI/CUI via NIST controls and assessments, ensuring supply chain security. PMBOK provides voluntary project management framework for all industries, enhancing delivery predictability and value realization through processes and tailoring.
CMMC
Cybersecurity Maturity Model Certification 2.0
Key Features
- Three tiered levels aligning to FCI, CUI, APT risks
- C3PAO third-party assessments for Level 2 certification
- 110 NIST SP 800-171 controls for CUI protection
- Limited POA&Ms with strict 180-day closure rules
- DFARS-mandated flow-down to supply chain subcontractors
PMBOK
Project Management Body of Knowledge (PMBOK® Guide)
Key Features
- Tailoring for predictive, agile, hybrid approaches
- Five Process Groups across project lifecycle
- Ten Knowledge Areas for discipline coverage
- ITTO framework for process traceability
- 12 principles and performance domains focus
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
CMMC Details
What It Is
Cybersecurity Maturity Model Certification (CMMC) 2.0 is a DoD certification framework verifying cybersecurity practices in the Defense Industrial Base (DIB). It protects Federal Contract Information (FCI) and Controlled Unclassified Information (CUI) via three cumulative levels: Level 1 (basic FCI safeguards), Level 2 (NIST SP 800-171 for CUI), and Level 3 (NIST SP 800-172 enhancements against APTs). Employs a tiered, evidence-based assessment methodology.
Key Components
- 14 domains (e.g., Access Control, Incident Response) with 17 Level 1, 110 Level 2, and 134 Level 3 practices.
- Built on FAR 52.204-21, NIST SP 800-171 Rev 2, and NIST SP 800-172.
- Certification model: self-assessments (Level 1/2), C3PAO (Level 2), DIBCAC (Level 3); 3-year validity with annual affirmations in SPRS/eMASS.
Why Organizations Use It
Mandated for DoD contractors/subcontractors handling FCI/CUI; ensures contract eligibility, reduces supply chain risks, enhances resilience, and provides competitive edge in bids. Builds stakeholder trust via verified maturity.
Implementation Overview
Phased approach: scoping, gap analysis, remediation, assessment preparation, certification, sustainment. Applies to all DIB sizes; requires SSPs, POA&Ms (180-day limits), continuous monitoring. Involves C3PAO/DIBCAC audits for higher levels.
PMBOK Details
What It Is
PMBOK® Guide (Project Management Body of Knowledge), published by the Project Management Institute (PMI), is a global standard and framework for project management. It provides principles, performance domains, and processes to deliver value across industries, emphasizing tailoring for predictive, agile, or hybrid approaches.
Key Components
- 12 principles (e.g., stewardship, value focus) and 8 performance domains (e.g., governance, stakeholders, risk) in recent editions.
- Legacy: 5 Process Groups and 10 Knowledge Areas with ~49 processes defined by ITTOs (Inputs, Tools & Techniques, Outputs).
- Tailoring models, artifacts, and models/methods; supports certifications like PMP®.
Why Organizations Use It
- Drives predictability, reduces overruns via standardized governance.
- Meets contractual, audit needs; enhances risk control and stakeholder trust.
- Boosts performance (3x higher in high performers per PMI research); enables competitive differentiation.
Implementation Overview
- Phased: assessment, tailoring, pilots, rollout, audits.
- Involves training, PMO setup, tools; suits all sizes/industries globally.
- No mandatory certification but aligns with voluntary PMP.
Key Differences
| Aspect | CMMC | PMBOK |
|---|---|---|
| Scope | Cybersecurity controls for FCI/CUI protection | Project management processes and principles |
| Industry | DoD contractors and subcontractors | All industries worldwide |
| Nature | Mandatory certification for DoD contracts | Voluntary global project management standard |
| Testing | Self-assess/C3PAO/DIBCAC every 3 years | Internal audits and maturity assessments |
| Penalties | Contract ineligibility and debarment | No legal penalties, performance risks |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about CMMC and PMBOK
CMMC FAQ
PMBOK FAQ
You Might also be Interested in These Articles...

ISO 27701 2025 Update: Navigating Standalone Certification Myths, Audit Realities, and a 90-Day PIMS Launch Plan
Debunk ISO 27701 2025 standalone certification myths vs ISO 27001. Get a 90-day PIMS launch roadmap, checklists & audit prep to certify faster amid global priva

Top 10 SOC 2 Audit Pitfalls and Fixes: Real Auditor Red Flags from Type 2 Fieldwork with Evidence Checklists
Discover 10 common SOC 2 Type 2 audit pitfalls like evidence gaps, scope creep, vendor oversights. Get Fail/Pass visuals, client stories, checklists for 95% fir

From Reactive Gatekeeper to Proactive Strategist: How Compliance Software Reshapes the Compliance Professional's Day
Discover how compliance software automates monitoring, delivers real-time insights, and transforms compliance pros from reactive gatekeepers to proactive strate
Run Maturity Assessments with GRADUM
Transform your compliance journey with our AI-powered assessment platform
Assess your organization's maturity across multiple standards and regulations including ISO 27001, DORA, NIS2, NIST, GDPR, and hundreds more. Get actionable insights and track your progress with collaborative, AI-powered evaluations.
Check out these other Gradum.io Standards Comparison Pages
ISO 37001 vs ISO 20000
Discover ISO 37001 vs ISO 20000: Anti-bribery governance & risk mitigation vs IT service lifecycle excellence. Compare certification, PDCA benefits, implementation—boost compliance now!
CCPA vs APRA CPS 234
Compare CCPA vs APRA CPS 234: US consumer privacy rights clash with Australia's financial security mandates. Master compliance gaps, risks & strategies for global resilience now.
ISO 37001 vs GRI
ISO 37001 vs GRI: Compare anti-bribery management systems with sustainability reporting standards. Uncover differences, benefits & integration for compliance & ESG excellence. Dive in!