NIST SP 800-171 Compliance for Federal Contractors
Implement the 110 security requirements that protect Controlled Unclassified Information (CUI) and form the foundation of CMMC Level 2 certification.
What Is NIST SP 800-171?
NIST SP 800-171 defines 110 security requirements across 14 families. It is mandated by DFARS 252.204-7012 and maps one-to-one with CMMC Level 2.
Who Must Comply
- DoD prime contractors with DFARS 252.204-7012
- Subcontractors at all tiers who handle CUI
- Cloud providers hosting CUI (FedRAMP Moderate required)
- Managed service providers with access to CUI systems
Common Compliance Gaps
- MFA not implemented for all remote and privileged access
- Non-FIPS encryption for CUI at rest and in transit
- Incomplete or outdated System Security Plan (SSP)
- Audit logs collected but not regularly reviewed
How PTG Helps with NIST Compliance
Comprehensive Gap Analysis
Detailed assessment across all 110 requirements resulting in an accurate SPRS score and prioritized remediation plan.
System Security Plan (SSP)
Thorough SSP documenting your system boundary, CUI data flows, interconnections, and control implementations.
Technical Controls
Deployment of SIEM, endpoint detection, MFA, FIPS-validated encryption, and access controls.
Policy Development
Security policies and procedures aligned with all 14 requirement families.
POA&M Management
Plans of Action and Milestones for requirements that cannot be immediately implemented.
Continuous Monitoring
Ongoing security monitoring and compliance maintenance to ensure sustained implementation.
DFARS and SPRS Scoring
DFARS 252.204-7019 and 7020 require self-assessment scores submitted to SPRS. Scores range from -203 (no controls) to 110 (all controls). Inaccurate scores carry False Claims Act liability.
Assess current NIST 800-171 implementation status
Calculate accurate SPRS score using DoD methodology
Submit score to SPRS for contract eligibility
Build POA&M for unimplemented requirements
Remediate gaps to improve score toward 110
Maintain ongoing compliance with regular assessments
Frequently Asked Questions
What is the relationship between NIST SP 800-171 and CMMC?
CMMC Level 2 maps one-to-one with the 110 requirements in NIST SP 800-171 Rev 2. CMMC adds the assessment and certification framework. Learn more about CMMC certification.
What is NIST SP 800-171 Rev 3?
Published May 2024, but CMMC 2.0 currently aligns with Revision 2. The DoD has not yet updated CMMC to reference Rev 3, so continue implementing Rev 2 for CMMC purposes.
What is the difference between NIST 800-171 and 800-53?
NIST 800-53 is the comprehensive federal control catalog. NIST 800-171 is a tailored subset for nonfederal organizations handling CUI. The 110 requirements in 800-171 derive from 800-53.
Do I need to comply with every requirement?
Full implementation yields the maximum SPRS score of 110. Unimplemented requirements can be documented in POA&Ms, which must be closed within 180 days under CMMC 2.0.
What is CUI and how do I identify it?
Controlled Unclassified Information requires safeguarding per law or regulation but is not classified. Categories are in the CUI Registry maintained by the National Archives.
How long does NIST SP 800-171 implementation take?
12 to 18 months from scratch, 6 to 12 months with partial implementations. PTG begins every engagement with a gap analysis to establish a realistic timeline.
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Achieve NIST SP 800-171 Compliance
Our CMMC Registered Practitioners will assess your current implementation and build a clear path to full compliance.