System Security Plan(SSP)
A comprehensive document describing how an information system implements required security controls, required for NIST SP 800-171 and CMMC compliance.
Overview
A System Security Plan (SSP) is a detailed document that describes the security controls implemented (or planned) for an information system that processes, stores, or transmits federal information. SSPs are required for NIST SP 800-171 compliance and are central to CMMC assessments. They map each control to the contractor's implementation approach.
Why It Matters in GovCon
SSPs are a contractual requirement for DoD contractors handling Controlled Unclassified Information (CUI) and increasingly for civilian contractors. An inadequate or outdated SSP can block contract award or trigger findings during assessments. Maintaining an accurate SSP and accompanying POA&M is essential for compliance and competitiveness.
Key Details
- NIST SP 800-171: SSP must address all 110 controls across 14 families.
- Implementation Description: For each control, the SSP describes how it is implemented or planned.
- POA&M Integration: Unresolved deficiencies are documented in the POA&M with remediation plans.
- Assessments: CMMC and customer assessments review the SSP for accuracy and completeness.
- Updates: SSPs must be kept current as systems and controls change.
- SPRS: NIST SP 800-171 self-assessment scores are reported in the Supplier Performance Risk System.
How GovCon Data Can Help
GovCon Data's compliance tracking helps you monitor SSP update requirements, POA&M deadlines, and assessment schedules so you stay ready for contract opportunities requiring CUI handling.
Related Terms
- Plan of Action and Milestones (POA&M)
- NIST SP 800-171
- Cybersecurity Maturity Model Certification (CMMC)
- Controlled Unclassified Information (CUI)
More Security Terms
The government official with the authority to enter into, administer, and terminate contracts on behalf of the U.S. government.
A government employee designated by the contracting officer to monitor contractor performance and serve as the technical point of contact.
Federal law establishing a framework for securing federal information systems and protecting government data.
A government-wide program that provides a standardized approach to security assessment and authorization for cloud services.
A sensitivity designation for unclassified information that requires protection from unauthorized disclosure.
Policies and technologies that control who can access systems and data and what they can do.
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