Compliance
NIST 800-171 Compliance Consulting
If your contracts require you to protect Controlled Unclassified Information, the obligation is specific: implement the control set, document it in a System Security Plan, track the gaps in a POA&M, and keep all of it accurate. We do that work and then maintain it.
Start here
The documentation is not the paperwork; it is the deliverable
Organizations often treat the System Security Plan and POA&M as administrative overhead that follows the real security work. In practice the reverse is closer to the truth. A reviewer, a prime contractor, or a contracting officer cannot inspect your network. They read your documentation and judge whether it describes a real, specific, current environment or a generic one.
That is why an SSP that paraphrases the requirement back at the reader is worth so little. The requirement says access must be limited to authorized users; the SSP has to say how, in your environment, with which identity provider, which groups, which review cadence, and which evidence. The same specificity applies to every applicable control.
The other half is accuracy. A self-assessment score submitted to a government system is an attestation. Documentation that overstates the environment creates exposure that is materially worse than a lower, honest position with a credible remediation plan behind it. We would rather correct an overstated position early than help defend one later.
The problem
Where 800-171 programs go wrong
These are the recurring failures we see in contractors who have already attempted the requirement.
The SSP is a template
A plan that restates each requirement without describing your implementation gives a reviewer nothing to evaluate and nothing to trust.
The score was optimistic
A self-assessment submitted without validating the environment behind it creates an attestation the organization cannot support.
CUI was never contained
When covered information spreads across general file shares, mailboxes, and personal devices, the entire environment becomes the scope.
The POA&M never closes
Items opened long ago with no owner and no movement read as a program that stopped rather than one in progress.
Controls exist without evidence
Logging, MFA, and review processes that are running but never captured cannot be demonstrated when someone asks.
Nobody owns maintenance
The environment changes continuously. Without an owner for control health and documentation, accuracy decays within a year.
Scope
What our 800-171 work covers
Scoped to your contracts and environment. Not every engagement needs every element.
Clause and applicability review
Read the contract language that imposed the requirement, including which revision it references and what it obligates you to do.
CUI data-flow mapping
Trace where covered information enters, moves through, and rests in your environment, and identify what can be contained.
System boundary definition
Define and document a defensible boundary so scope is a deliberate decision rather than an accident of how files spread.
Gap assessment against the control set
Evaluate each applicable requirement in your environment and record what is met, partially met, and not met, with the reasoning.
System Security Plan development
Write an SSP that describes your actual implementation control by control, at a level of detail a reviewer can evaluate.
POA&M development and management
Track open items with owners, remediation steps, and target dates, and keep them moving instead of accumulating.
Control implementation
Identity and MFA, access control, audit logging and retention, media protection, encryption, endpoint controls, and configuration baselines.
Self-assessment and submission support
Work through the assessment methodology with you so the score you submit is one your environment and documentation support.
Enclave design where it reduces scope
Where appropriate, build a contained environment for CUI rather than applying the full control set to everything you own.
Ongoing managed compliance
Monitor control health, refresh evidence, and update the SSP and POA&M as the environment and the requirements change.
Our approach
How an 800-171 engagement runs
Each phase produces an artifact you keep, and you see findings before committing to the next stage.
- 01
Scope
Review clauses, map CUI flows, and define the system boundary that determines what the requirements actually apply to.
- 02
Assess
Evaluate every applicable requirement against the real environment and document the basis for each determination.
- 03
Document
Produce an SSP that describes your implementation specifically, and a POA&M that makes open items owned and dated.
- 04
Remediate and sustain
Close gaps in priority order, capture evidence as you go, and maintain both the controls and the documentation over time.
Business outcomes
What you get out of it
The artifacts matter, but the underlying security improvement is what they are supposed to represent.
An SSP you can hand over
Documentation specific enough that a prime contractor or reviewer can read it and understand your environment.
A defensible position
A score and an attestation supported by the environment as it actually exists, not by an optimistic reading of it.
A POA&M that moves
Open items with owners and dates that close on schedule demonstrate a functioning program rather than a stalled one.
Narrower scope, lower cost
Containing CUI deliberately means you are not funding the full control set across systems that never needed to be in scope.
Real reduction in risk
Identity control, logging, encryption, and media handling are the controls that limit what an intrusion can reach and take.
Readiness for what comes next
Because CMMC assessment sits on top of this control set, work done properly here is not repeated later.
Fit
Who this is for
- Federal contractors and subcontractors with DFARS or equivalent CUI-protection clauses
- Suppliers who received flow-down requirements from a prime contractor
- Organizations that submitted a self-assessment score and are not confident it is defensible
- Contractors whose SSP was written once and no longer describes the environment
- Manufacturers, engineering firms, and service providers supporting federal or defense programs
- Companies preparing for CMMC assessment who need the underlying control set implemented first
When it may not be the right fit
We would rather tell you up front than sell you something that will not help.
- Organizations that want documentation produced without implementing the controls it describes
- Buyers seeking a guaranteed score or assessment result, which no provider can offer
- Businesses with no federal contract exposure: framework-neutral compliance consulting usually fits better
Accuracy, attestation, and what we will not do
A self-assessment score is an attestation you make to the government. We will help you reach and document a position accurately, and we will tell you when a claimed implementation is not supported by the environment. We will not help construct a score the evidence does not support, and we do not promise any particular score or outcome.
NIST revises SP 800-171, and contracts reference specific revisions with their own effective dates. We scope against the revision your contract actually names and against current official guidance rather than against general summaries, including this page.
This work involves handling sensitive material: network documentation, credentials, assessment findings, and evidence describing your weakest controls. A provider with administrative access to a contractor environment is itself part of that environment's security posture, and we treat our own access, retention, and separation of duties accordingly.
NIST 800-171 questions
What contractors ask us
What is the difference between NIST 800-171 and CMMC?
NIST SP 800-171 is the control set: the requirements for protecting Controlled Unclassified Information in nonfederal systems. CMMC is a Department of Defense program that adds assessment and verification on top of those requirements for applicable contracts. Put plainly, 800-171 describes the security you implement; CMMC governs how that implementation is checked. The engineering work overlaps almost entirely, which is why the two are usually addressed together.
Which revision of 800-171 applies to us?
That is set by your contract, not by whichever revision is newest. NIST periodically revises the publication, and agencies phase revisions into contract clauses on their own schedules, so an active contract may reference an earlier version than the current one. We read the clause language rather than assume, and check it against current official guidance before scoping the work.
What is an SSP, and why does ours keep failing review?
A System Security Plan describes your system boundary and how each applicable requirement is implemented in your specific environment. The most common failure is genericness: an SSP that restates the requirement instead of describing your implementation tells a reviewer nothing. The second most common is staleness, where the plan described the environment accurately at some point in the past. A useful SSP is specific, current, and maintained as the environment changes.
How does a POA&M relate to the SSP?
The SSP documents what is implemented; the Plan of Action and Milestones documents what is not, along with the remediation steps, the responsible owner, and the target date for closing each item. A POA&M is not an admission of failure; it is the accepted mechanism for showing that open items are known, owned, and moving. What damages credibility is a POA&M with items that have been open and untouched for a long time.
Can you improve our SPRS score?
We can help you implement controls and document them accurately, which is what a score reflects. We cannot promise a number. Your self-assessment score is your submission and your attestation, and it needs to be defensible against the environment as it actually exists. Where a score has been overstated relative to reality, correcting that is part of the work rather than something to route around.
Do we have to secure our whole company?
Not necessarily. The requirements apply to the systems that process, store, or transmit Controlled Unclassified Information. If CUI is deliberately contained (in an enclave, a segmented environment, or a small defined set of systems), the scope narrows accordingly. If CUI is allowed to spread across general file shares, personal devices, and unmanaged mail, the practical scope becomes the entire environment. Containment is usually the highest-leverage early decision.
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Log collection, correlation, and retention that supports the audit and accountability requirements.
Learn moreHave your SSP and POA&M looked at honestly
Send us what you have, or tell us you have nothing yet. Either way we will tell you where you actually stand and what closing the gap involves.