Mock Assessment

The assessment before the government's.

A full CMMC assessment conducted by Stehrling CCAs and CCPs, with the same rigor a government or third-party assessor will apply. Every control reviewed. Every piece of evidence checked. Every interview rehearsed. In a regime of self-attestation and government spot assessments, you no longer choose your assessment date. You find out what an assessor will find, before the assessor finds it.

You cannot schedule readiness after the fact. You can only already be ready.
What Mock Assessment Is

A real assessment. Without the consequences.

Stehrling Mock Assessment is a structured simulation of a formal CMMC assessment, conducted with the same rigor, methodology, and evaluation criteria that a government-led assessor or Certified Third-Party Assessment Organization will apply. The work is led by our CCAs, who are credentialed in the same assessment methodology an assessor applies.

What your posture rests on is your own assessment, the SPRS score that comes out of it, and an annual affirmation an executive signs. A scheduled assessment can be prepared for. Being asked at short notice cannot. An affirmation is only as good as the evidence sitting behind it, and the time to find out how good that is, is before someone signs.

Most "readiness checks" are paper exercises. A consultant reviews your SSP, scans your policies, and tells you it looks fine. That's not what assessors do, and it's not what we do either. A real Mock Assessment evaluates your controls the way an assessor will: by inspecting evidence, validating technical implementations, and interviewing your team against the exact standards in NIST 800-171A.

The output is a clear, defensible picture of where you actually stand: what will hold up, what will get flagged, and what needs remediation before an assessor, a prime, or your own signature puts it to the test.

What We Evaluate

The same three dimensions your assessor will evaluate.

CMMC assessments evaluate organizations across three dimensions: the documentation that describes your program, the technical controls that implement it, and the people who operate it. A Mock Assessment evaluates all three with assessor-level rigor, whether the assessment that follows is government-led, contract-required, or the one you conduct on yourself before signing.

Documentation

We review every document an assessor will request, evaluated against the precise requirements in NIST 800-171A. Not just whether it exists, but whether it says what it needs to say in the way an assessor will accept.

  • System Security Plan completeness and accuracy
  • Policies aligned to all 17 CMMC domains
  • Procedures documented to operational depth
  • POA&M structure and remediation logic
  • Evidence repository organization and completeness

Technical Controls

Our CCAs inspect your technical environment the way an assessor will. Configurations checked against documented baselines. Access controls validated. Evidence captured to prove each control is actually operating as the SSP describes.

  • Access control and identity configuration
  • Encryption implementation and key management
  • Logging, monitoring, and audit accountability
  • Network segmentation and boundary enforcement
  • Configuration management and change control

Personnel & Interviews

Assessors interview your team to validate that documented procedures are actually followed. We conduct the same interviews, with the same questions, and identify where your team needs additional preparation before it counts.

  • Role-based interview rehearsals with key personnel
  • Procedural knowledge validation
  • Incident response and reporting practice
  • CUI handling behavior verification
  • Training program effectiveness assessment
How the Engagement Runs

A focused engagement, structured like the real assessment.

Mock Assessment engagements typically run two to four weeks depending on organizational complexity. The work follows the same sequence and methodology a formal assessment will use, so the experience itself becomes preparation.

01
Pre-Assessment Planning
We review your SSP, scope, and assessment boundary to ensure the Mock Assessment evaluates exactly what a formal assessor will evaluate. Interviews are scheduled with the personnel an assessor will want to talk to. Evidence repositories are aligned to assessor expectations.
02
Documentation & Evidence Review
Every document an assessor will inspect is reviewed against NIST 800-171A criteria. Gaps in evidence are flagged. Documentation that doesn't say what it needs to say is identified. The review is exhaustive, because a government assessor's review will be.
03
Technical Validation
Our CCAs inspect the technical controls in your environment, validating configurations and capturing evidence, then document any discrepancies between your documented controls and operational reality in the same language an assessor would use.
04
Interview Rehearsals
Structured interviews with your key personnel, conducted with the same approach a formal assessor will use. Your team practices articulating procedures, demonstrating CUI handling, and discussing incident response. Gaps in preparation are identified before they matter.
05
Findings & Remediation Plan
A detailed findings report documents what holds up, what would receive findings, and what requires remediation. Each item is prioritized, scoped for effort, and translated into a clear remediation plan that closes the gap before an assessment or affirmation puts it to the test.
What You Get

Deliverables that make you actually ready.

Mock Assessment outputs are designed to be immediately actionable. Not a glossy report that sits on a shelf. The documentation a remediation team can pick up and execute against, and the confidence to know exactly what stands between you and a defensible compliance posture.

Findings Report

Detailed assessment of every control, every piece of evidence, every interview. Written in the same language a formal assessor will use, so you can map findings directly to the standards an assessor applies.

Remediation Plan

Prioritized, scoped, and time-estimated remediation items. What to fix first, what can wait, and what should be documented in your POA&M for transparent disclosure.

Readiness Determination

A clear yes-or-no on whether your organization could stand behind its attestation in front of an assessor today, with the reasoning behind the determination. If we say you're ready, we mean it.

Interview Prep Materials

Role-based preparation guides for the personnel an assessor will interview. What to expect, how to answer, what to demonstrate. Your team enters any assessment knowing what's coming.

Assessment Path Guidance

Straight advice on your verification posture: how to prepare for government-led assessments, whether a C3PAO certification still makes sense where a contract or prime requires one, and how to sequence either.

Assessment Day Support

Optional support during any formal assessment, government-led or third-party. We can be on standby for questions, observe sessions remotely, or attend in person depending on your engagement scope.

Who It's For

Mock Assessment fits four situations.

Most engagements come from one of these scenarios. Each is a legitimate reason to want assessor-level validation before your compliance posture gets tested for real.

Signing the annual affirmation

An executive at your company signs an annual affirmation of compliance in SPRS. Before that signature goes on the line, a CCA-led assessment tells you whether the affirmation is defensible, and documents the diligence behind it.

Exposed to government-led assessment

The Department has said it will verify self-assessments through select government-led assessments. Those do not come with a preparation window. A Mock Assessment is how you make sure the answer is already yes when the question arrives.

Completing CMMC Readiness

The natural conclusion of a Stehrling Readiness engagement. Before you attest, or before you commit to a C3PAO where one is still required, we run the assessment ourselves. Most Readiness clients move directly into Mock Assessment as the final validation step.

Built your program elsewhere

You worked with another firm or built your program internally. The work is done, the documentation exists, and you want an outside CCA to validate readiness honestly before you rely on it. We come in fresh, evaluate honestly, and tell you where you stand.

Why Stehrling

A readiness check, or a real Mock Assessment. The difference matters.

Most consulting firms offer something called a "readiness check" or "pre-assessment review." Almost none of them are conducted by actual Certified CMMC Assessors. The work is done by general compliance consultants applying their best interpretation of what assessors will look for.

Stehrling is different. Every Mock Assessment is led by a Certified CMMC Assessor, working to the same methodology and NIST 800-171A objectives an assessor uses, with leadership that has been through DIBCAC assessments from the contractor side. That changes what gets caught, what gets challenged, and what your team is actually prepared for.

That is why the Mock Assessment works. It follows the same process and standards an assessor will use, so that whenever your posture is tested, you have already been through it once.

Get Started

Could your attestation survive an assessor? Find out first.

Whether you're facing a government-led assessment, a contract that still requires certification, or an annual affirmation your leadership has to sign, a Mock Assessment removes the uncertainty. Talk to a CCA about your current state and get the honest answer before anyone else asks the question.

Talk to a CCA →

An independent firm building NIST 800-171 compliance programs and AI governance for defense contractors and the DIB.

Fredericksburg, VA