CMMC Services

NIST 800-171 Compliance Services

Defense contractors face a growing challenge: meeting NIST 800-171 compliance requirements while maintaining operations and keeping contracts active. The 110 security controls in NIST SP 800-171 demand technical rigor, thorough documentation, and ongoing management, which most internal teams are not resourced to handle on their own. Gaps in compliance put contract eligibility at risk and leave controlled unclassified information (CUI) exposed to cyber threats.

Coalfire Federal's NIST 800-171 compliance services help you close those gaps with precision, giving your team expert-led advisory and assessment support built on nearly 20 years of federal cybersecurity experience.

What NIST 800-171 Compliance Requires of Federal Contractors

If your organization collects, stores, or transmits covered defense information (CDI) or CUI on nonfederal systems, DFARS clause 252.204-7012 requires you to implement the security controls defined in NIST SP 800-171. Both prime contractors and subcontractors must demonstrate compliance, post current assessment scores to the Supplier Performance Risk System (SPRS), and maintain a system security plan (SSP) that accurately refl ects their security environment.

With CMMC 2.0 now codifying these requirements into a tiered certification model, achieving and proving NIST 800-171 compliance is no longer optional. Level 2 of CMMC directly aligns with the 110 practices in NIST SP 800-171, meaning that contractors handling CUI must pass a third-party assessment conducted by a certified C3PAO. The window to prepare is closing, and the cost of inaction is losing eligibility for DoD contracts.

NIST 800-171 Compliance

How Coalfire Federal Supports Your Compliance Journey

Coalfire Federal's NIST 800-171 compliance services are designed to meet your organization wherever you are in the process. Whether you are starting from scratch or need to validate an existing program, our cybersecurity compliance professionals deliver tailored support across three core phases.

Gap Analysis

Our advisory team conducts a thorough analysis of your current information systems against NIST 800-171 controls. You receive a clear picture of your compliance posture, including verification of your security boundaries, the status of your policies and procedures, and a prioritized roadmap for achieving full DFARS/NIST 800-171 compliance.

Remediation

We work alongside your team to design and develop the documentation required for DFARS compliance, including your SSP and associated supporting artifacts. Coalfire Federal also provides reference architecture recommendations and engineering roadmap guidance so that your technical environment aligns with the controls you need to satisfy.

Assessment

Coalfire Federal develops and executes a DFARS security assessment plan (SAP) that tests your systems against NIST 800-171 controls. The resulting assessment report gives you a verified view of your compliance posture, ready for SPRS submission and CMMC assessment preparation.

Why Contractors Choose Coalfire Federal

The federal compliance landscape is complex. Working with an advisor who understands both the technical and regulatory dimensions of NIST 800-171 saves your organization time, reduces risk, and improves outcomes. Coalfire Federal brings the depth of experience that matters:

Nearly 20 years of NIST-based compliance expertise. Our knowledge is drawn from thousands of gap assessments, advisory engagements, and assessment projects across the defense industrial base.

A software developer or cybersecurity analyst wearing glasses and a lanyard sits at a multi-monitor workstation displaying lines of code, working in a modern office environment

Certified C3PAO and RPO.

As one of the few organizations authorized to conduct CMMC third-party assessments, we bring firsthand insight into what assessors evaluate and how to meet their expectations.

Vendor and technology independence.

Our recommendations are unbiased and tailored to your environment, not tied to any specifi c product or platform.

CMMC NIST 800-171 compliance support services built for the DIB.

From aerospace and defense manufacturers to IT service providers supporting DoD clients, we tailor our approach to the operational realities of your industry and your specific CUI environment.

Take the Burden Off Your Internal Team

Federal mandates and NIST 800-171 compliance can consume your staff's time and attention, pulling focus from the work that drives your business. Coalfire Federal's NIST compliance IT services take that weight off your shoulders so you can continue delivering on your contracts while we handle the compliance complexity.

Whether you need to prepare for a CMMC Level 2 assessment, close gaps identified in a self-assessment, or build a compliance program from the ground up, Coalfire Federal has the advisory and assessment expertise to get you there.

Talk to an expert today to schedule a free consultation and take the first step toward NIST 800-171 compliance.

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Frequently Asked Questions

Noncompliance with NIST 800-171 can result in serious consequences for federal contractors. These include termination of existing contracts, suspension or debarment from future government contracting, and financial penalties. If a data breach involving CUI occurs and your organization is found to be noncompliant, federal officials will likely conduct an investigation and audit of your systems. Misrepresenting your compliance status can also trigger action under the False Claims Act, which carries potential fines and criminal charges.

Yes. DFARS clause 252.204-7012 requires prime contractors to flow down compliance requirements to all subcontractors that handle CUI. Subcontractors must implement the same NIST 800-171 security controls and post assessment scores to SPRS. Prime contractors are also increasingly conducting their own supply chain reviews, requesting full system security plans and detailed compliance questionnaires from their subs before awarding work.

NIST 800-171 is the security framework that defines the 110 controls required to protect CUI in nonfederal systems. CMMC 2.0 is the DoD's enforcement mechanism for those requirements. At Level 2, CMMC directly aligns with NIST 800-171 but adds a mandatory third-party assessment conducted by a certified C3PAO, replacing the previous self-attestation model. In practice, achieving NIST 800-171 compliance is the foundation for passing a CMMC Level 2 certification assessment. For a deeper breakdown, read Making Sense of NIST 800-171, CMMC and Related DFARS Clauses.

Timelines vary based on your organization's current security posture, the size and complexity of your CUI environment, and the resources available for remediation. Organizations with mature cybersecurity programs and existing controls in place may reach compliance in a few months. Others that are starting earlier in the process or need significant infrastructure and documentation work may require six months to a year or more. A gap analysis is the best way to establish a realistic timeline and prioritize the highest-risk areas first.

Although NIST published Revision 3 in May 2024, the DoD issued a class deviation directing contractors to continue using Revision 2 for compliance with DFARS 252.204-7012. All current CMMC Level 2 assessments are based on the 110 controls in Rev 2. Contractors should maintain compliance with Rev 2 while monitoring DoD guidance for the transition timeline to Rev 3.

During a gap analysis, Coalfire Federal's advisory team evaluates your current information systems, security boundaries, policies, and procedures against the full set of NIST 800-171 controls. The result is a detailed report that identifies where your organization meets requirements, where gaps exist, and what steps are needed to close them. This report serves as the foundation for building a remediation plan and a realistic path toward full compliance and CMMC readiness.