CMMC Continuous Monitoring: Requirements, Cadence, and Evidence

By The Defense Compliance Report Editorial Team · an independent trade publication on CMMC 2.0 and DIB compliance

Last reviewed July 2026 · Regulatory and implementation status last verified July 16, 2026

CMMC continuous monitoringis a requirement that’s easy to skip — and easy for an assessor to catch. It comes down to seven words in NIST SP 800-171 Revision 2: monitor security controls on an ongoing basis.No fixed schedule. No named tool. So here’s the bottom line first: at CMMC Level 2, continuous monitoring (security requirement CA.L2-3.12.3) means keeping your security controls provably effective over time — you set risk-based cadences, keep evidence they actually ran, and act when something fails. That “no fixed schedule, no named tool” flexibility is exactly what makes this hard — and exactly what some vendors use to sell you more than you need. This page fixes that.

The 30-second answer

July 2026 implementation update — read this before you panic or relax

On July 13, 2026, the Department of War suspended the transition to CMMC Phase II— the phase that would have expanded Level 2 third-party (C3PAO) assessment requirements across applicable procurements beginning November 10, 2026 — and launched a 60-day review of the program (U.S. Department of War release, July 13, 2026). Here’s what it actually did and didn’t change:

Translation for this page: the government paused a verification mechanism, not the requirement to protect the information. Continuous monitoring still lives in NIST SP 800-171 Rev. 2, and it’s still what makes your annual affirmation truthful.

Two operative facts you can act on today: New procurement designations are limited during the suspension — contracting officers are also directed to amend active solicitations and to remove Level 2 (C3PAO) and Level 3 requirements from existing contracts by modification before the next option period. And a press release does not automatically rewrite an executed contract — read your actual solicitation or modification and ask the contracting officer how the suspension applies to that award in writing. The required level shows up in the solicitation itself: DFARS 252.204-7025 is where CMMC level requirements are disclosed.

The program’s future is genuinely unsettled — a 60-day CMMC Reform Task Force is reviewing it, and the associated public Request for Information closes August 14, 2026. That’s a reason to get your monitoring house in order now, not a reason to wait.

This page is for contractors handling CUI who are implementing or sustaining Level 2; Affirming Officials and control owners who need proof between assessments; and small and midsize DIB companies deciding whether they actually need new tooling or managed monitoring.

This page is not the full answer forFCI-only companies whose requirement is Level 1; Level 3 organizations weighing enhanced NIST SP 800-172 requirements; or anyone trying to figure out which level a specific contract requires. If that’s you, start with Find My CMMC Path instead.

What does CMMC continuous monitoring actually require?

Strip away the jargon and the requirement asks you to prove three things, continuously:

1. You know what’s in scope. Which security controls, and the systems and services that support them, need watching.
2. You check that they still work. Not “did we turn this on once,” but “is it still doing its job today.”
3. You act when they don’t. Monitoring that produces a dashboard nobody responds to is observation, not control management.

The source language is worth reading once, because it’s the whole ballgame. NIST SP 800-171 Rev. 2 states the control as: “Monitor security controls on an ongoing basis to ensure the continued effectiveness of the controls.” The discussion adds that the terms continuous and ongoingimply assessing and analyzing security controls “at a frequency sufficient to support risk-based decisions,” and points to NIST SP 800-137 (Information Security Continuous Monitoring) for further guidance.

Here’s the part that matters for your budget — the line between what the requirement and its official discussion call for and what they do not mandate:

Note on sourcing: The CMMC Level 2 Assessment Guide explains how the requirements are assessed and states that it does not create independent legal obligations. We use its definitions and assessment objectives throughout, and we label our own operating recommendations as editorial.

Did the July 2026 Phase II suspension make continuous monitoring optional?

We get why this question is on your mind. When the headline says “CMMC suspended,” it’s tempting to close the tab and move on. Don’t. The suspension is narrower than the headline, and the part that touches continuous monitoring is fully intact.

The reform review is directly relevant to this page: the CMMC Reform Task Force is charged with recommending “realistic, scalable security measures” and is gathering industry input through a public Request for Information (U.S. Department of War, July 13, 2026). Published legal analyses of that RFI note it seeks input on recognizing commercially available security products — but those are recommendations to be made, not rules in force. Don’t let an unconfirmed RFI response change your current implementation.

Primary sources: U.S. Department of War release, July 13, 2026; 32 CFR Part 170 (§170.15, §170.16); DFARS 252.204-7012.

Does “continuous” mean 24/7 — and do I need a SIEM?

It’s the question that comes up more than any other on continuous monitoring, and it usually lands the moment an MSP quote shows up with a 24/7 SOC line item. So let’s separate the four things that get blended together:

• ▸Explicitly real-time. SI.L2-3.14.5 requires “periodic scans of organizational systems and real-time scans of files from external sourcesas files are downloaded, opened, or executed.” That’s on-access antimalware scanning — required, and genuinely real-time. It is not the same as paying humans to stare at a console overnight.
• ▸Event-triggered. Some alerts must fire on an event — for instance, alerting when the audit-logging process fails (AU.L2-3.3.4). Real-time alerting, not a mandated 24/7 human-staffing interval.
• ▸Risk-based and ongoing. CA.L2-3.12.3 itself. You choose the cadence and defend it.
• ▸Level 3 territory. CMMC Level 3 layers 24 enhanced security requirements selected from NIST SP 800-172 on top of the 110 Level 2 requirements, is assessed by the government (DCMA DIBCAC), and carries materially higher monitoring and detection expectations (32 CFR §170.14). If you’re a Level 2 shop, don’t let a vendor sell you Level 3 posture you don’t need.

Now the honest part. Continuous monitoring is a recurring operating cost, not a one-time purchase — and if you’re a very small shop with a handful of in-scope systems, you may not need a full SIEM at all. The logging and monitoring controls can be met with centralized logging plus documented, repeatable manual review, named owners, retained evidence, and tested response. That combination won’t satisfy every one of the 110 Level 2 requirements by itself — but for the audit and monitoring objectives, it can hold up. “We collect logs” isn’t enough on its own; a defined, evidenced review process is.

Past a handful of systems — multiple clouds, real log volume, internet-facing services, no security staff after hours — a SIEM (or managed detection and response, MDR) often becomes the more sustainable choice. Whether it’s cheaper than manual review is a scoped cost decision for your environment, not a CMMC requirement. Buy for the specific capability you’re missing, not for the phrase “continuous monitoring.”

Primary sources: NIST SP 800-171 Rev. 2, §3.14.5 (SI.L2-3.14.5), §3.12.3 (CA.L2-3.12.3); 32 CFR §170.14 (Level 3 requirements from NIST SP 800-172, Feb 2021).

Which security requirements support CMMC continuous monitoring?

We built this map to put four things in one operating view: the plain-English activity mapped to the actual NIST SP 800-171 Rev. 2 requirement, its CMMC Level 2 identifier, what the source says about timing, the kind of evidence that supports it, and the failure mode to watch for.

How we chose these rows. We include a security requirement when its text or assessment objectives involve monitoring, scanning, alerting, recurring assessment, detecting unauthorized use, or keeping monitored implementations accurate. This is a selected operating subsetof the 110 Level 2 requirements — not the full set. CA.L2-3.12.3 is the core; the rest support it.

How to read the timing column.It reflects the language in NIST SP 800-171 Rev. 2 or the CMMC Level 2 Assessment Guide. Where the source states no interval, that’s noted — and setting a defensible cadence is yourcall (see the cadence section below). The “failure mode to check” column is our editorial observation, not a regulatory statement.

The CMMC Continuous Monitoring Requirements Map — verified July 16, 2026

Why the score math matters here. Under the DoD NIST SP 800-171 Assessment Methodology used for the Supplier Performance Risk System (SPRS), you start at a perfect 110 and subtract each unmet requirement’s weight (1, 3, or 5 points). Adjusted deductions for partial implementation are limited to a small number of requirements, including IA.L2-3.5.3 (multifactor authentication) and SC.L2-3.13.11 (FIPS-validated cryptography); most others are all-or-nothing (32 CFR §170.24). Several of the monitoring requirements above carry the maximum 5-pointdeduction — CA.L2-3.12.3, CA.L2-3.12.1, AU.L2-3.3.1, AU.L2-3.3.5, RA.L2-3.11.2, SI.L2-3.14.1, SI.L2-3.14.2, SI.L2-3.14.3, SI.L2-3.14.6, and CM.L2-3.4.1/.2 — while others carry 3- or 1-point deductions. Because self-assessments and select government-led assessments are the enforcement mechanisms during the suspension, that score carries real weight right now.

Adjacent, but not continuous-monitoring requirements: CA.L2-3.12.2 is the operational plan of action, and CA.L2-3.12.4 is the SSP — a prerequisite, since without a current SSP an assessment “could not be completed.”

Primary sources: NIST SP 800-171 Rev. 2 (requirement text); CMMC Level 2 Assessment Guide (identifiers and objectives); DoD NIST SP 800-171 Assessment Methodology and 32 CFR §170.24 (scoring).

How often do I have to monitor, and how long do I keep the proof?

Cadence confuses people because CMMC uses several timing logics, and vendors tend to flatten them into one scary “everything must be daily.” We group them into five operating types to keep source-stated timing separate from your own cadence and triggers — a DCR framework, not an official taxonomy:

1. Real-time — required for specific activities (e.g., on-access scanning of external files, SI.L2-3.14.5).
2. Event-triggered — triggered by a failure, incident, advisory, or anomaly (e.g., audit-failure alerts).
3. Change-driven — triggered before, during, or after a system change.
4. Recurring, risk-based — organization-defined, based on your environment.
5. Annual minimum — where the guide points to at least annual activity, such as security-control assessment and SSP review.

To set a defensible recurring cadence for anything organization-defined, work through these questions: How fast could this control quietly fail? How fast would that failure cause real exposure? How fast could you even detect it? How much does the environment change? Is the activity automated or manual? Is a provider doing it? A monthly control-owner review is a reasonable starting pointfor a small, stable enclave — but “stable” is doing a lot of work in that sentence. A high-change, multi-cloud, internet-facing environment needs faster review, and you should write down whyyou chose what you chose. That written rationale is what turns “we felt like monthly was fine” into a defensible risk decision.

Set a written retention policy, retain operational logs for the periods established by your contract terms, applicable law, incident-response needs, your evidence strategy, system capability, and documented risk decisions — and don’t let a vendor talk you into six-year hot storage of everything as if the regulation demands it.

Primary sources: CMMC Level 2 Assessment Guide (“periodically” and “organization-defined”); NIST SP 800-171 Rev. 2 (no fixed retention period); 32 CFR §170.16/§170.17; DFARS 252.204-7012(e).

What evidence proves CA.L2-3.12.3?

Assessors — and your own honest self-assessment — aren’t looking for “we have a tool.” They’re looking for proof the tool is configured, watched, reviewed, and retained. We organize potential evidence into a seven-layer chain (the DCR Evidence-Chain Framework— our editorial mapping of potential evidence to NIST’s examine/interview/test methods, not a federally mandated set of labels):

Structure your evidence so you can support the three ways it gets checked: an assessor can examine the documents, interview the actual owner, and test the mechanism. NIST SP 800-171A (June 2018) defines those assessment methods and lets them be tailored by depth and coverage; the CMMC Level 2 Assessment Guide supplies the specific objectives an assessor works against.

One thing that trips people up: freshness.A screenshot from the day you first turned a control on doesn’t prove it’s been running since. For each artifact, track the period it covers, when it was captured, the source system, who captured it, and the action it led to. Evidence you can’t tie to the period under review is a lot weaker — and may not show the control was actually running.

Primary sources: NIST SP 800-171A (June 2018); CMMC Level 2 Assessment Guide; 32 CFR Part 170.

How do you build a CMMC continuous monitoring plan?

Here’s the sequence we’d run, in order:

1. Freeze a scope baseline. Capture your CMMC Assessment Scope, CUI assets, security protection assets, external service providers (ESPs) and cloud service providers (CSPs), boundaries, CUI flows, and the current SSP version. Everything downstream keys off this.
2. Build the monitoring inventory. Start with the requirements in the map above, then add anything specific to your environment — remote-access session monitoring, boundary monitoring, incident-response readiness, physical-facility monitoring where it applies.
3. Assign ownership. For each activity: the accountable internal owner, whoever performs it, a backup, who reviews the output, and who can approve a risk decision or update the SSP. Unowned monitoring is the single most common gap.
4. Set timing in two layers. Record the source-stated timing first (real-time, periodic, timely, or “no interval stated”), then your organization-defined cadence — with a one-line rationale for why it fits your risk.
5. Add triggers. Every row should carry an event or change trigger, not just a calendar date: a new vulnerability, an incident, a system change, a missing log source, a new connection.
6. Define evidence before you execute. Decide what artifact will prove each activity ran, who creates it, whether it’s sensitive, where it lives, how long you keep it, and whether you can reproduce it on request.
7. Define the response path. Triage, severity, ticketing, when it becomes an operational plan of action, when it becomes an incident, closure validation, and the SSP update.
8. Test the system, then review effectiveness. Test your audit-failure alert, your escalation, your evidence export, and your change-to-SSP workflow. Then review whether the activity can actually detect and correcta failing control — not just whether a box got checked.

Keep the whole thing in one register your team updates — scope, owner, source timing, your cadence, trigger, evidence, last-run date, next-due date. That register is your CA.L2-3.12.3 evidence.

How do continuous monitoring, the assessment, and the annual affirmation fit together?

Four different things get collapsed into the marketing phrase “continuous compliance,” and confusing them is how contractors end up over-buying or under-protecting:

The affirmation is where the stakes get real. Under 32 CFR §170.22, the Affirming Official— a senior representative with authority over the organization’s compliance — must affirm continuing compliance after each assessment, including any POA&M closeout, and annually thereafter, entered in SPRS. The attestation isn’t “we were compliant on assessment day.” It’s that the organization “has implemented and will maintain implementation” of the applicable requirements across scope. A dashboard full of green boxes with no current evidence, no owner, no change handling, and no remediation doesn’t discharge that responsibility.

And that attestation carries real legal weight. Inaccurate or unsupported self-attestations posted in SPRS remain an area of False Claims Act exposure that the suspension does nothing to diminish. Translation: your affirmation should never outrun what your monitoring evidence can support — and if you’re unsure, that’s a question for federal-contracts counsel, not a checklist.

Here’s the trap to avoid: a Final Level 2 CMMC Status is valid for three years, subject to annual affirmation, and a Conditional Level 2 status carries a 180-day POA&M closeout window (32 CFR §170.17). But a three-year assessment cycle is not a three-year monitoring cycle.Between assessments you’ll have system changes, new vulnerabilities, staff turnover, logging failures, and provider changes. Continuous monitoring is how you keep the thing you affirmed actually true in month 14.

Primary sources: 32 CFR §170.22 (affirmation); 32 CFR §170.17 (status validity); NIST SP 800-171 Rev. 2 §3.12.3.

How do system changes and temporary gaps get handled between assessments?

Environments change. That’s not a compliance failure; failing to handle the change is. The official CMMC guidance frames it in three stages:

• ▸Before: perform a security-impact analysis, review the CUI flow, determine whether scope changes, document the change, and flag whether it may be significant.
• ▸During: record temporary risks, assign responsible personnel, maintain any compensating measures, and — where appropriate — open an operational plan of action.
• ▸After: validate the result, update the SSP and diagrams, update provider-responsibility documentation, and close temporary actions only after you’ve verified they worked.

The distinction that saves contractors from a real headache is operational plan of action (OPA) versus CMMC assessment POA&M:

Per the CMMC Assessment Guide’s own definitions, a temporary deficiency “is not based on an ‘in progress’ initial implementation” — it arises after implementation and gets tracked in an OPA. When a degraded control fits that temporary-deficiency definition, document it in an OPA with an owner, milestones, and validation. Not every operational hiccup automatically meets the definition — but don’t mislabel ordinary drift as an assessment POA&M, and don’t let an OPA sit open forever as a substitute for actually fixing the control.

Primary sources: DoD CIO CMMC FAQ (before/during/after workflow); CMMC Level 2 Assessment Guide (temporary deficiency / OPA); 32 CFR §170.21 (POA&M closeout).

Which levels require this — and how is Level 3 different?

Be precise here, because sloppy sources cause real errors: “continuous monitoring is required at all levels” is too imprecise. Any cybersecurity program at any level has to keep working — but the specific CA.L2-3.12.3 requirement is a Level 2 requirement. Describe Level 1 and Level 3 by their own source language, and never turn a general security principle into a false requirement citation.

One version note that matters: CMMC Level 2 currently assesses against NIST SP 800-171 Revision 2. NIST has since published a Revision 3 in its general series, but CMMC continues to use Revision 2 until future rulemaking incorporates any change. You may choose to prepare for Rev. 3, but keep your traceability to the current Rev. 2 CMMC requirements. Don’t let a tool or consultant quietly swap Rev. 3 control numbers into your Level 2 program.

Primary sources: 32 CFR §170.14 (level requirements; 110 + 24 from NIST SP 800-172, Feb 2021); FAR 52.204-21 (Level 1); DoD CIO CMMC FAQ (Rev. 2 remains the assessment basis).

How do MSPs, MSSPs, CSPs, and other ESPs share continuous-monitoring responsibility?

Whether the provider is an MSP, MSSP, CSP, or another external service provider (ESP), ask the same five questions for every monitoring activity they touch:

1. Who configures the mechanism?
2. Who watches its health?
3. Who triages the findings?
4. Who takes corrective action?
5. Who preserves and produces the evidence for your assessment?

If the answer to any of those is “we assumed the provider,” that’s a gap. What to request from a provider before you rely on them: a service description, the current shared-responsibility or customer-responsibility matrix, the log sources included, alert severity and response definitions, coverage hours, escalation times, retention and export capability, and how evidence is delivered on request.

Document who’s responsible in your SSP and, for cloud and external service providers, a CRM — that’s the document an assessor uses to see where your responsibility ends and the provider’s begins.

Primary sources: 32 CFR Part 170 (assessment scope, ESP/CSP treatment, and the Customer Responsibility Matrix).

What does CMMC continuous monitoring cost?

We’d rather give you the drivers than a fake range that falls apart the moment your scope differs from the example:

The honest way to frame it: continuous monitoring is an operating expense, not a one-time project.A certified provider’s value is recurring — monitoring, evidence upkeep, and annual-affirmation support are a monthly line, the operating cost of holding DoD contracts, not a box you check once before an assessment. Build vs. buy vs. managed is a scoped cost decision; the requirement is the same either way.

Which provider category should handle the gap?

Match the category to the gap:

This category-fit table is our editorial conclusion based on the role boundaries above — not a Cyber AB ranking or endorsement.

Two guardrails we won’t soften. First, software alone doesn’t satisfy CMMC.A GRC platform can automate evidence, tasks, reminders, control mapping, and reporting — it doesn’t, by itself, operate your technical and procedural controls. Treat it as a supporting layer, not the whole solution. A CUI enclavecan reduce your assessment scope, but only when CUI flows and the supporting assets are genuinely confined to the enclave boundary; it doesn’t automatically remove enterprise systems, security protection assets, connections, personnel, or external providers from scope.

Second, keep readiness and assessment separate. Under the CMMC conflict-of-interest rules (32 CFR §170.8(b)(17)), a firm that served as your consultant to prepare you for a CMMC assessment generally may not then perform that certification assessment — a restriction that runs for three years. A live reminder given the pause: the old “book a C3PAO before November 10, 2026” urgency is no longer valid as a general rule — first confirm what your actual solicitation or contract requires after any amendment.

Primary sources: 32 CFR §170.8, §170.9, §170.11 (C3PAO/assessor conflict-of-interest); DoD CIO CMMC FAQ (cost drivers).

Twenty CMMC continuous monitoring failure modes to check

These failure modes recur across the source requirements, the assessment guidance, and the operating evidence chain. If you fix nothing else on this page, check these:

1. Treating the three-year assessment as the monitoring cadence.
2. Treating the annual affirmation as a substitute for operational evidence.
3. Buying a SIEM before defining log sources and owners.
4. Collecting logs without ever checking collection health.
5. Building alerts with no one assigned to triage them.
6. Running scans without closing the findings.
7. A monitoring plan with no execution history behind it.
8. Dashboards that can’t produce the underlying evidence.
9. Not updating the SSP after a system change.
10. Using an assessment POA&M for ordinary operational gaps (that’s an OPA).
11. Letting OPAs stay open indefinitely.
12. Assuming your MSP owns activities that aren’t in the contract.
13. No documented Customer Responsibility Matrix with your provider.
14. Screenshots with no dates, scope, or interpretation.
15. One cadence applied to controls with very different risk.
16. Calling every control “real-time” with no source behind it.
17. Assuming native cloud tools are inadequate just because they aren’t branded “SIEM.”
18. Assuming a purchased platform equals implemented controls.
19. Letting evidence files contain uncontrolled CUI.
20. Using the suspended Phase II date to manufacture urgency — internally or from a vendor.

How we researched and verified this guide

What we actually verified (July 16, 2026):

What we did not do:we did not observe your systems, and we can’t tell you which level a specific contract requires — that’s set by the clause and your CUI handling. Cadence and tooling depend on your environment and documented risk decisions. The CMMC reform review may change procurement policy; we re-verify the status of this page frequently and date every regulatory fact.

This is educational research, not legal, contractual, or compliance advice. Confirm scope and applicability with a CMMC Registered Practitioner or Registered Provider Organization (RP/RPO), or a qualified federal-contracts attorney.

CMMC continuous monitoring FAQ

Is CMMC continuous monitoring required?

Yes, for Level 2, under security requirement CA.L2-3.12.3 (NIST SP 800-171 Rev. 2, §3.12.3). Several other Level 2 requirements also impose specific monitoring, scanning, alerting, review, testing, and change activities.

Does CMMC continuous monitoring mean 24/7?

Not as a blanket Level 2 rule. Some activities are explicitly real-time — like scanning files from external sources (SI.L2-3.14.5) — and Level 3 carries higher expectations, but Level 2 does not require around-the-clock analyst coverage of every control.

Is a SIEM required for CMMC Level 2?

No specific SIEM product is named as universally mandatory. You still have to satisfy the underlying audit, monitoring, alerting, investigation, evidence, and response objectives — which a SIEM commonly helps with, but which very small, stable environments can meet with centralized logging plus documented manual review.

How often must CMMC controls be monitored?

Use the source-stated cadence where one exists. Where cadence is organization-defined, set and document a frequency sufficient for risk-based decisions and add event and change triggers. Where the CMMC Level 2 Assessment Guide uses “periodically,” the interval may not exceed one year.

Is monitoring once a year enough?

Not for the whole program. Some activities have an at-least-annual floor, but real-time, event-triggered, change-driven, and recurring risk-based activities require more frequent execution.

What is the difference between continuous monitoring and a CMMC assessment?

Continuous monitoring operates the security program between assessment points. An assessment evaluates whether requirements are implemented correctly, operating as intended, and producing the desired outcome, at a point in time.

Is the annual affirmation the same as continuous monitoring?

No. The affirmation is a senior official’s formal attestation in SPRS (32 CFR §170.22). Continuous monitoring produces the operational basis and evidence that make that attestation truthful.

Did the July 2026 Phase II suspension remove monitoring requirements?

No. It suspended the transition to third-party assessments and paused pending milestones. Phase I self-assessment requirements and DFARS 252.204-7012 safeguarding duties remain in force.

Does CMMC Level 1 require CA.L2-3.12.3?

No. CA.L2-3.12.3 is a Level 2 requirement. Level 1 (FCI only) has separate safeguards, some of which involve ongoing protection and scanning (for example, SI.L1-b.1.xv).

Does CMMC use NIST SP 800-171 Revision 2 or Revision 3?

CMMC assessments currently use Revision 2. Any move to Revision 3 would require future rulemaking.

What evidence should we retain?

Retain evidence that shows design, scope, execution, output, response, validation, and governance. Separately, artifacts used as assessment evidence are subject to the six-year retention rule in 32 CFR Part 170, and cyber-incident data must be preserved for at least 90 days under DFARS 252.204-7012(e). There is no single fixed routine log-retention duration in NIST SP 800-171.

Can an MSP or MSSP perform continuous monitoring?

Yes, it can perform defined activities — but you remain responsible for understanding scope, shared responsibilities, evidence, escalation, and everything the provider does not cover. Document it in your SSP and a Customer Responsibility Matrix.

Is an operational plan of action the same as a CMMC POA&M?

No. An operational plan of action documents a temporary deficiency that arises after a requirement was implemented. A CMMC assessment POA&M is tied to Conditional status and must close out within 180 days under 32 CFR §170.21.

Can the same company prepare us and then assess us?

Generally not for the same assessment. The CMMC conflict-of-interest rules (32 CFR §170.8(b)(17)) restrict a firm that served as your assessment-preparation consultant from performing that certification assessment, and that restriction runs for three years.

Should we buy a SIEM before building a monitoring plan?

Usually not. Define the required outcomes, scope, log sources, ownership, response, and evidence first — then decide whether your current tools already satisfy them or you have a specific capability gap to fill.

The bottom line, and your next move

Continuous monitoring is the difference between “we passed once” and “we can prove we still work” — and during the suspension, with self-assessments and select government-led assessments carrying the enforcement weight, the second one is what protects your contracts and your annual affirmation. You now know the exact requirement (CA.L2-3.12.3), the group of requirements around it, which cadences the source sets versus which you set, what evidence holds up, and where the real risks are.

Primary sources referenced on this page

• NIST SP 800-171 Revision 2 — §3.12.3, §3.14.5, §3.14.6, §3.3.x, §3.11.2, §3.4.x
• NIST SP 800-171A (June 2018) — assessment methods and objectives
• NIST SP 800-137 — Information Security Continuous Monitoring (ISCM)
• CMMC Level 2 Assessment Guide (DoD CIO)
• 32 CFR Part 170 — §170.4, §170.8, §170.9, §170.11, §170.14, §170.16, §170.17, §170.21, §170.22, §170.24
• DoD NIST SP 800-171 Assessment Methodology (SPRS scoring weights)
• DoD CIO CMMC FAQ (change workflow; cost drivers; Rev. 2 assessment basis)
• U.S. Department of War, “Forging the Arsenal of Freedom: Department of War Suspends CMMC Phase II Requirements,” July 13, 2026
• DFARS 252.204-7012 (safeguarding, incident reporting, 90-day preservation); DFARS 252.204-7025 (solicitation notice of CMMC level)