Your System Security Plan is the document an assessor reads first and trusts least.
Who this is for
Organizations preparing for a CMMC Level 2 assessment, responding to a DFARS flow-down, or holding an SSP that was templated, inherited, or written for a different environment.
Problems we address
- An SSP describing intended rather than implemented controls
- Control narratives too generic to assess against
- No identified evidence for control claims
- A POA&M with no owners, dates, or resourcing
- Documentation that drifts out of date the week after it is written
Scope and approach
We document what is actually implemented. That means examining configurations rather than accepting assertions — a control claim we cannot substantiate becomes a POA&M item, not a paragraph of optimistic prose.
Each control narrative names the specific implementation, the responsible party, and the evidence that demonstrates it. We build the document so it can be maintained, because an SSP is a living artifact, not a deliverable you file.
Typical deliverables
- System Security Plan covering all applicable NIST SP 800-171 requirements
- System boundary definition and CUI data flow documentation
- Control implementation narratives with identified evidence
- POA&M with owners, milestones, and remediation detail
- Supporting policies and procedures referenced by the SSP
- Maintenance guidance and update cadence
Framework and technology context
NIST SP 800-171 Rev. 2 and Rev. 3, NIST SP 800-171A assessment objectives, CMMC Level 2 scoping guidance, and DFARS 252.204-7012.
If your SSP would not survive an assessor asking “show me,” it is worth rewriting before someone does.
Documentation quality materially affects assessment outcomes but does not guarantee them. Certification decisions rest with an authorized C3PAO and the CMMC ecosystem, and depend on your implemented controls, not solely on how they are documented.