> **Editorial note:** The vendor comparisons below reflect what was published on each company's own website as of July 2026, checked directly against their live pages. Vendor product lines change, so before you buy, confirm current NIST 800-171 Rev 3 status directly with the vendor. This article is informational, not legal or compliance advice; verify contractual requirements with a qualified attorney or CMMC/DFARS consultant.
NIST Special Publication 800-171, Revision 3 was published in May 2024. As of this writing, it has been the current version of the standard for more than two years, yet a surprising number of compliance documentation vendors selling policies, procedures, System Security Plan (SSP), and Plan of Action and Milestones (POA&M) templates are still marketing products written for Revision 2. If you are shopping for NIST 800-171 documentation, knowing which vendors have actually rebuilt their content for NIST 800-171 Rev 3, versus which are still selling NIST 800-171 Rev 2 material under a NIST 800-171 Rev 3-adjacent label, matters more than it might seem.
NIST 800-171 Rev 3 is not a light edit of NIST 800-171 Rev 2. According to NIST's own published structure (and confirmed on vendor documentation pages that have done the mapping work), NIST 800-171 Rev 3 reorganizes the requirements into 17 control families, up from 14 in NIST 800-171 Rev 2, adding Planning and Supply Chain Risk Management as their own families. The control count and structure shifted too: NIST 800-171 Rev 3 is built around 97 core requirements that expand into approximately 297 discrete requirements, assessed against roughly 510 Assessment Objectives defined in the companion publication NIST SP 800-171A Rev 3. NIST 800-171 Rev 2, by contrast, is generally described using the older 14-family, 110-control, 320-objective structure. Non-Federal Organization (NFO) controls, which existed in NIST 800-171 Rev 2, were also removed in NIST 800-171 Rev 3.
That is a substantial rewrite, not a version bump. Documentation built for Rev 2 does not automatically cover NIST 800-171 Rev 3, because the control language, family structure, and assessment objectives are meaningfully different.
There is a genuine regulatory wrinkle that explains why so many vendors have not moved to NIST 800-171 Rev 3, and it is worth understanding before you assume every vendor is simply behind: DFARS clause 252.204-7012 is generally written to require contractors to implement the most current version of NIST SP 800-171 in effect at time of solicitation, which today would technically be NIST 800-171 Rev 3.
However, the Department of Defense (DoD) issued a class deviation in May 2024 that allows contractors to continue complying with NIST 800-171 Rev 2 for the time being, specifically so that companies are not forced onto NIST 800-171 Rev 3 while CMMC 2.0 assessments still evaluate against NIST 800-171 Rev 2.
CMMC 2.0 itself, as it stands today, still assesses organizations against NIST 800-171 Rev 2. A future "CMMC 3.0" model is expected to align with NIST 800-171 Rev 3, but I do not have a verified source confirming an exact date for that transition, and you should verify current CMMC rulemaking status before relying on any timeline.
In practical terms, this means a contractor who is only worried about passing a CMMC Level 2 assessment today can, for now, still get by on Rev 2-based documentation. But that is a shrinking window, not a stable resting place, for a few reasons covered below. It also does not help non-DoD federal contractors, since other agencies that require NIST 800-171 compliance are not necessarily covered by the DoD's DFARS-specific class deviation.
ComplianceForge is the one vendor whose current website content most clearly demonstrates completed NIST 800-171 Rev 3 work rather than a promise of future work. Their NIST SP 800-171 Rev 3 compliance resource page explicitly walks through the Rev 3 structure: 17 requirement families, 97 core requirements, roughly 297 discrete requirements, and mapping down to the Assessment Objective level in NIST SP 800-171A Rev 3. They describe their NIST 800-171 Compliance Program (NCP) and related bundles as covering both Rev 2 and Rev 3, positioned for organizations that are transitioning between the two depending on their contract requirements and CMMC timeline. They also publish a free NIST 800-171 Rev 2-to-Rev 3 transition guide that estimates roughly a third of Assessment Objectives require minimal mapping effort, a fifth require moderate effort, and about half require significant rework, which is a useful gut check on how much work this transition really involves regardless of which vendor you choose.
Kieri Solutions' current site (Kieri Compliance Documentation, or KCD) states directly in its FAQ that it is "already incorporating NIST SP 800-171 Rev. 3 changes" into its documentation package, and that license holders will receive NIST 800-171 Rev 3 material as it becomes available, with the product ultimately supporting both NIST 800-171 Rev 2 and NIST 800-171 Rev 3. Marketing imagery on their site references "Rev. 2 and Rev. 3 support." That said, the bulk of the page's descriptive language (for example, "covering all 110 NIST SP 800-171 controls") still describes the NIST 800-171 Rev 2 structure, which suggests Kieri is mid-transition: actively committed to NIST 800-171 Rev 3 and rolling it into existing licenses, but not yet presenting NIST 800-171 Rev 3 as fully built out the way ComplianceForge does. If NIST 800-171 Rev 3 coverage is a hard requirement for you today, ask Kieri directly what is delivered now versus what arrives in a future update.
Peerless's policy template page is titled "Policy Templates for CMMC 2.0 and NIST 800-171 Compliance" and describes coverage of "All 14 Control Families, 110 Controls, and 320 Control Objectives." That is the NIST 800-171 Rev 2 structure verbatim. As of this writing, the page contains no reference to NIST 800-171 Rev 3, its 17 families, or its Assessment Objective count. If you need NIST 800-171 Rev 3-specific language, confirm with Peerless directly whether an updated version exists that is not yet reflected on their public page.
Cuick Trac's NIST 800-171 policy and standards page explicitly frames CMMC Level 2 as implementing "NIST SP 800-171 Revision 2 (NIST 800-171 R2)" and links out to NIST's own NIST 800-171 Rev 2 publication page. There is no mention of NIST 800-171 Rev 3 anywhere on the page. This is consistent with a vendor whose materials are current for today's CMMC 2.0 assessment baseline, but not yet built for NIST 800-171 Rev 3.
Two years is a long time for a "current" standard to sit unaddressed in a vendor's product line, and it matters for reasons beyond simply wanting the newest version:
Contracts are already shifting. Some federal solicitations, particularly outside DoD-specific DFARS contracts, may already reference the current version of NIST SP 800-171, which today is Rev 3. Buying documentation that only speaks Rev 2 language can leave you unable to respond to a solicitation that expects Rev 3-mapped controls.
The DoD's class deviation is explicitly temporary. It exists to bridge a gap between DFARS wording and CMMC's current NIST 800-171 Rev 2 baseline, not to declare Rev 2 permanent. When CMMC eventually catches up to NIST 800-171 Rev 3 (widely expected, though I do not have a verified source for an exact date), organizations relying on Rev 2-only documentation will need to redo a substantial portion of their policies, procedures, and SSP content, on a timeline dictated by the government rather than their own planning.
The rewrite is bigger than a document reads it might not seem. Because Rev 3 restructured control families, removed NFO controls, and rebuilt assessment objectives from scratch, a document set written for NIST 800-171 Rev 2 cannot simply be "patched." According to ComplianceForge's own published estimate of the transition effort, roughly half of Assessment Objectives require significant, not-clearly-mapped rework. Buying Rev 2 documentation today is effectively buying a known future re-purchase or a large internal rewrite project.
Assessors and auditors increasingly know the difference. As CMMC assessments and DIBCAC reviews mature, assessors are more likely to notice documentation that still uses NIST 800-171 Rev 2 language and structure, especially if your System Security Plan cites superseded control numbering.
Before purchasing any NIST 800-171 documentation package, it is worth asking the vendor directly:
1. Is this documentation mapped to NIST 800-171 Rev 3's 17 control families and its Assessment Objectives in SP 800-171A Rev 3, or only to NIST 800-171 Rev 2's 14 families and 110 controls?
2. Is Rev 3 support already delivered today, or is it a planned future update included in your license?
3. Does the package distinguish clearly between NIST 800-171 Rev 2 and NIST 800-171 Rev 3 content, or does it blend the two in a way that could confuse an assessor?
4. What happens to your license or support if CMMC formally moves to NIST 800-171 Rev 3, does your update or renewal policy cover that transition at no extra cost?
Getting clear answers to those questions will tell you more about a vendor's actual NIST 800-171 Rev 3 readiness than any marketing page alone.
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Sources checked directly for this article: ComplianceForge's NIST SP 800-171 Rev 3 compliance page, Kieri Solutions' Kieri Compliance Documentation service page, Peerless's CMMC/NIST policy template page, Cuick Trac's NIST 800-171 policy and standards page, and CMMC Audit Preparation's policy template resource roundup. Regulatory context on the DFARS 7012 class deviation was corroborated across multiple industry sources discussing 2026 CMMC and DFARS timelines. All pages were reviewed in July 2026 and may have changed since.
