NIST 800-171 Gap Analysis for Manufacturing: The Midwest Playbook Toward CMMC
NIST 800-171 is not a “policy binder exercise.”
It is evidence-based validation that your organization protects Controlled Unclassified Information (CUI).
Official publication:
https://csrc.nist.gov/publications/detail/sp/800-171/rev-2/final
Step 1: Confirm CUI Scope
Most manufacturers over-scope or under-scope.
Identify:
Systems storing CUI
Transmission paths
Third-party dependencies
Step 2: Control-by-Control Review
Map each 800-171 control to:
Policy reference
Procedure
Evidence artifact
Responsible party
This is where most organizations realize documentation gaps exist.
Step 3: Evidence Validation
An auditor will not accept:
“Our MSP does that.”
“We use Microsoft 365.”
You must demonstrate configuration and monitoring alignment.
Step 4: POA&M Strategy
If gaps exist:
Prioritize by risk
Assign remediation timeline
Track accountability
This structured approach positions you for CMMC Level 2 readiness.
