A configuration change that nobody recorded can become an assessment problem months later. For small DoD contractors in the defense industrial base handling Controlled Unclassified Information, a CMMC configuration management plan template turns informal IT habits into documented, repeatable controls required for CMMC compliance.
I have seen capable teams struggle because their secure settings lived in an administrator’s memory, not in an approved plan. A practical configuration management plan gives you a record of what systems exist, who can change them, and how you confirm those changes do not weaken CUI protection.
The goal is a plan your limited IT staff can maintain without creating a paperwork project that never ends.
Key Takeaways
- CMMC Level 2 includes nine Configuration Management requirements, CM.L2-3.4.1 through CM.L2-3.4.9, which directly map to NIST SP 800-171 standards.
- Your plan must match your actual CUI environment, staff roles, tools, and approved security policies.
- Keep a current secure baseline configuration, asset inventory, change log, and software control records as assessment evidence.
- Review security impact through configuration change control procedures before a change reaches any system processing Controlled Unclassified Information, cloud tenant, endpoint, server, or network device.
- A template gives you structure, but it does not guarantee CMMC compliance on its own.
Why Configuration Management Matters in CMMC Level 2
CMMC Level 2 aligns with the 110 security requirements in NIST SP 800-171 Revision 2. Configuration Management is one of the 14 security domains required for achieving CMMC compliance across the defense industrial base. It addresses the practical question that often exposes weaknesses: can you prove your Controlled Unclassified Information and Federal Contract Information systems remain in a known, approved state?
The nine CM requirements cover hardware, software, firmware, system documentation, secure configuration settings, change approvals, impact analysis, least functionality, and user-installed software. The DoD CMMC Level 2 Assessment Guide breaks these requirements into assessment objectives that assessors use to examine your evidence for total NIST SP 800-171 alignment.
For a small contractor, your configuration management plan should be proportionate. You do not need an enterprise change advisory board for every browser update. However, you do need documented authority, repeatable review steps, and records that show how your team protects the enclave.
A baseline is not a one-time setup document. It is the approved reference point you compare against after changes, a formal risk assessment, incidents, audits, and device replacement.
Your System Security Plan should point to this configuration management plan and identify where the policies apply. If your company uses Microsoft 365 GCC High, Microsoft Intune, a managed firewall, and a small number of workstations, name those technologies. Broad statements such as “IT manages all systems securely” do not give an assessor enough evidence. Your System Security Plan must align with your overall strategy for CMMC compliance.
How a CMMC Configuration Management Plan Template Holds Up
A CMMC configuration management plan template works when it describes reality in plain language. I recommend assigning one accountable owner, even when a managed service provider performs much of the technical work. Outsourcing IT does not outsource accountability.
The plan should cover every system that stores, processes, or transmits Controlled Unclassified Information, plus the security tools that protect those systems. That can include endpoints, virtual machines, firewalls, switches, backup platforms, identity services, cloud tenants, mobile devices, and remote-access services.
Start by drawing a boundary through proper configuration item identification. Identify what sits inside the CUI environment and what sits outside it. For example, a public marketing website may be outside scope, while a Microsoft 365 SharePoint site used for Controlled Unclassified Information is in scope.
This simple table helps define the environment before you write your configuration management plan.
| System area | Example in scope | Configuration record to maintain |
|---|---|---|
| User endpoints | Intune-managed Windows laptops | Device inventory, secure baseline configuration, encryption status |
| Identity and email | Microsoft 365 GCC High tenant | Conditional Access settings, admin roles, audit configuration |
| Network security | Firewall supporting CUI access | Approved rules, firmware version, configuration backup |
| Cloud workloads | Azure virtual machine handling CUI | Build standard, patch level, approved access groups |
| Backup and recovery | Encrypted CUI backup repository | Retention setting, recovery test record, access list |
The value of this table is simple: it tells your team where records belong. By leveraging automated tools alongside your CMMC configuration management plan, you can maintain accurate asset records across every system. It also prevents a common gap where cloud services receive less scrutiny than on-premises devices, keeping your overall configuration management plan strong and compliant.
Copy-Ready CMMC Level 2 Configuration Management Plan Template
Copy the template below into your document system. Replace every bracketed item with information that matches your environment. Keep concise example entries only when they accurately describe your operations.
Document Control
Plan title: [Company Name] configuration management plan
Document owner: [Name and title, example: Operations Manager]
Technical owner: [Name and title, example: vCIO or IT Manager]
Approved by: [Executive name and title]
Version: [Version number, example: 1.0]
Effective date: [Month Day, Year]
Review frequency: [At least annually and after material system changes]
Related documents: [System Security Plan, Asset Inventory, Change Log, Incident Response Plan, Access Control Policy]
Purpose and Scope
Purpose: This configuration management plan defines how [Company Name] establishes, approves, records, monitors, and reviews configurations and changes for systems within the CUI environment. This document connects directly to your System Security Plan to ensure compliance alignment, and any temporary deviations are tracked inside your Plan of Action and Milestones where applicable.
Scope: This plan applies to [list in-scope systems, example: Microsoft 365 GCC High, Intune-managed Windows laptops, Azure Government resources, Fortinet firewall, encrypted backups, and approved remote-access tools].
CUI boundary: [Describe the boundary in one or two sentences. Example: CUI is created, stored, and transmitted only within the GCC High tenant, managed endpoints, approved Azure Government resources, and the secured network connections between them.]
Out-of-scope systems: [List systems that do not store, process, or transmit CUI. Example: public website, guest Wi-Fi, marketing laptops.]
Roles and Change Authority
| Role | Assigned person or provider | Responsibility |
|---|---|---|
| Executive sponsor | [Name/title] | Approves this plan and accepts business risk decisions |
| Configuration manager | [Name/title] | Maintains baselines, reviews records, and coordinates changes |
| System administrator | [Name/title or MSP] | Applies approved changes and captures evidence |
| Security lead | [Name/title] | Reviews security impact and validates safeguards |
| End users | [Employee group] | Request software or changes through the approved process |
Authorized change access: Only [named roles] may modify security settings, production systems, identity services, firewall rules, endpoint policies, or CUI application configurations. By maintaining strict access control, the designated Change Control Board or authority ensures that principles of least privilege and strict version control are enforced across all administrative accounts.
Emergency changes: [Describe the procedure. Example: The system administrator may make an emergency change to contain an active security threat. The configuration manager documents the change, impact review, approval, and validation within one business day.]
Baseline Configurations and Inventory
Baseline standard: [Company Name] maintains an approved secure baseline configuration for all in-scope system types, including hardware, software, firmware, documentation, and cloud services.
Baseline records include: [Operating system version, patch level, installed applications, encryption status, endpoint protection status, local administrator settings, firewall settings, approved ports, identity configuration, backup setting, and assigned owner.]
Inventory source: [Tool or record location, example: Intune device inventory, Microsoft 365 admin center, asset register in SharePoint, and firewall configuration export.]
Inventory update schedule: [Example: Automatically through Intune daily; manual reconciliation monthly; full review quarterly.]
Example endpoint baseline: [Windows 11 Enterprise, BitLocker enabled, Microsoft Defender for Endpoint active, automatic security updates enabled, local administrator access restricted, screen lock set to 15 minutes, USB storage restricted as required.]
This section supports CM.L2-3.4.1. Include enough technical detail for an administrator to compare a device or tenant against its approved state. Device hardening records should show the settings you expect, not merely state that devices are hardened.
Security Configuration Settings
Approved configuration sources: [Example: Microsoft security baselines, CIS Benchmarks, vendor hardening guidance, and documented company settings.]
Settings enforcement method: [Example: Microsoft Intune configuration profiles, Group Policy, firewall management console, Azure Policy, and monthly administrative review.]
Configuration exceptions: [Describe the approval and expiration process. Example: The security lead must approve exceptions in writing. Each record includes the reason, compensating safeguards, owner, approval date, and expiration date.]
Verification frequency: [Example: Endpoint compliance reports reviewed monthly; firewall configuration reviewed quarterly; identity administrator roles reviewed monthly.]
Secure settings must apply to each system type in your scope. For cloud infrastructure, configuration records may include conditional access, logging, tenant sharing controls, privileged roles, encryption settings, and approved regions. A secure cloud architecture needs documented settings that your team can inspect and enforce.
Change Control and Security Impact Review
Use one change record for each material change. Routine changes can follow a pre-approved standard change procedure when the scope, risk, and rollback steps remain the same.
| Change record field | Copy-ready entry |
|---|---|
| Change ID | [CHG-YYYY-###] |
| Requested by | [Name and title] |
| System affected | [Asset name, service, or configuration item] |
| Description | [Clear description of requested change] |
| Business reason | [Why the change is needed] |
| CUI impact | [None / Possible / Confirmed, with explanation] |
| Security impact review | [Authentication, encryption, logging, access, backup, vulnerability, or network impact] |
| Approval | [Name, title, date] |
| Implementation date | [Date and time] |
| Testing and validation | [What was checked after the change] |
| Rollback plan | [Steps and responsible person] |
| Final status | [Implemented / Rejected / Rolled back] |
Before implementation, the security lead reviews whether the change affects confidentiality, system availability, access permissions, audit logging, malware protection, backups, or CUI flow. This covers CM.L2-3.4.3 and CM.L2-3.4.4 through formalized configuration change control. These reviews also coordinate with vulnerability management, patch management, and audit and accountability processes to protect system integrity.
A planned Office 365 migration needs the same treatment as a firewall rule change. Document tenant destination, data handling, migration account permissions, multi-factor authentication, sharing settings, validation tests, and rollback options. If the work includes GCC High, confirm that your selected migration tool and support process fit that environment.
Least Functionality and Software Control
Least functionality rule: [Company Name] enables only functions, ports, protocols, services, and applications needed for approved business operations, relying on strict least functionality and least privilege guidelines.
Disabled or restricted items: [Example: local administrator accounts, unapproved remote-control tools, consumer cloud storage clients, peer-to-peer software, unused browser extensions, and obsolete protocols.]
Approved software process: [Example: Users submit requests through the service desk. The system administrator verifies business need, licensing, security review, and CUI impact before installation.]
Unauthorized software control: [Example: Intune application control, Microsoft Defender policies, endpoint monitoring, restricted user permissions, and monthly review of installed software.]
User-installed software: [State whether users may install software. Example: Users cannot install software on CUI endpoints without written approval from the configuration manager.]
This section addresses CM.L2-3.4.6 through CM.L2-3.4.9. Endpoint security works best when users cannot bypass controls by installing unsanctioned remote access, synchronization, or file-sharing applications.
Monitoring, Evidence, and Plan Review
Evidence retained: [Asset inventory exports, baseline settings, change tickets, approvals, test results, exception records, software reports, access reviews, configuration backups, and review meeting notes.]
Evidence location: [Approved repository and retention period.]
Configuration monitoring: [Example: Intune compliance alerts, Microsoft Defender alerts, firewall logs, vulnerability scan reports, and quarterly configuration review.]
Plan review: [Company Name] reviews this configuration management plan [frequency] and after major technology changes, an incident response event, significant assessment findings, or a change to the CUI boundary.
Keep the Plan Manageable With a Monthly Operating Rhythm
A configuration management plan fails when it becomes a document nobody opens. I advise small teams to connect the plan to existing service management work. Your ticketing system, endpoint platform, cloud portal, and asset list can produce much of the evidence you need.
Use a monthly review to catch gaps before they become entrenched. The configuration manager should confirm that new devices appear in inventory, recent changes have approvals, and software exceptions have not expired. By leveraging automated tools to gather this data, small teams can significantly reduce manual overhead and stay ahead of compliance requirements.
A short monthly routine can include:
- Compare the asset inventory against purchases, offboarding records, and endpoint management reports using automated tools.
- Review administrator accounts, installed software alerts, and endpoint compliance status to support ongoing patch management and vulnerability management.
- Check completed change records for approvals, impact review, testing, and rollback documentation before presenting them to the Change Control Board.
- Confirm that backups and firewall configuration exports remain protected and accessible for your incident response readiness.
- Escalate overdue patches, unsupported software, and undocumented changes during your routine risk assessment to the responsible owner.
This discipline supports business continuity and security because recovery depends on knowing what configuration you had before an outage or cyber incident. It also improves infrastructure optimization by exposing duplicate tools, unlicensed software, and unmanaged devices.
Apply the Plan to Cloud Services and Managed IT
Small Business IT rarely stays confined to a server closet. Your configuration management plan should cover SaaS services, managed endpoints, virtual infrastructure, and identity controls with the same care you apply to traditional data center technology.
If you use a provider for managed IT for small business, name the provider’s responsibilities in the plan. State who approves changes, who has privileged access, where tickets live, and how the provider sends configuration evidence. A provider may be an important business technology partner, but your company still owns the CMMC outcome.
The same boundary discipline matters when a provider offers cybersecurity services, cloud management, or technology consulting. Contractors across the defense industrial base rely on these partners to maintain strict access control, system and communications protection, and robust audit and accountability. Ask for clear reports on managed devices, security policies, patch status, software changes, firewall updates, and administrative activity. I prefer a monthly review meeting with assigned actions over vague assurances that systems are monitored.
Some contractors also run specialized systems. Restaurant POS support and niche production systems may matter for specific operations. Place those systems inside the plan only if they connect to or handle CUI. Otherwise, document their separation from the CUI environment.
A thoughtful IT strategy for SMBs links security controls to daily operations. That includes managing system and information integrity, media protection, and physical protection, but each project must pass through the same change process before it touches controlled information. Good tailored technology services should fit your approved baseline, not create undocumented exceptions while preparing for a formal security assessment to achieve CMMC compliance.
For practical context, CMMC Level 2 requirement summaries show why configuration management must work alongside access control, audit logging, incident response, and the other CMMC domains.
Avoid the Evidence Gaps Assessors Find Fast
The most common weakness during a security assessment is a configuration management plan that describes a process the company does not follow. If your policy says every change receives a security review, but your tickets lack impact notes, an assessor can easily spot the disconnect that threatens your CMMC compliance.
Another frequent issue is incomplete inventory. A laptop list alone does not establish a baseline for cloud identity, firewall rules, virtual servers, firmware, security software, or system documentation. Keep your configuration records current, particularly through strict version control, when devices are replaced, users leave, or new services enter the Controlled Unclassified Information boundary.
Avoid relying on screenshots alone. Screenshots can support evidence, yet they should connect to an approved baseline, a dated change record, or a recurring review. System-generated reports, exports, ticket history, and policy assignments offer stronger proof of effective configuration change control during a formal evaluation.
The template also cannot replace honest scoping, and discrepancies between your active System Security Plan, outdated documentation, and an open Plan of Action and Milestones will quickly trigger findings. A plan must reflect your actual Controlled Unclassified Information environment and company policies. It does not guarantee CMMC compliance on its own, and it should be reviewed against your System Security Plan, evidence set, and technical controls before any official security assessment. Furthermore, if temporary gaps exist, document them accurately within your Plan of Action and Milestones to maintain transparency.
Frequently Asked Questions
What is a CMMC configuration management plan template?
It is a structured document designed to help small DoD contractors formalize their IT settings, asset inventories, and change control procedures to meet NIST SP 800-171 standards. Using a template ensures that your security controls, baselines, and responsibilities are consistently documented for CMMC Level 2 assessments.
Do I need a complex change control process for every minor IT update?
No, your configuration management plan should be proportionate to your organization’s size and resources. Small contractors can implement streamlined approval steps for routine updates while reserving rigorous impact reviews for significant changes affecting Controlled Unclassified Information.
How often should we review our configuration management plan?
You should review your plan at least annually, as well as following any material system changes, security incidents, or updates to your CUI boundary. Regular monthly reviews of your asset inventories, change logs, and software exceptions will also help prevent compliance gaps before an official assessment.
Put Configuration Management Into Daily Practice
A strong CMMC configuration management plan template gives a small contractor in the defense industrial base a dependable way to control changes without burying staff in bureaucracy. Your baseline, inventory, approvals, software rules, and evidence should tell one consistent story that supports overall CMMC compliance.
I recommend starting with the systems that handle CUI today, then assigning ownership and building records around your actual tools. Clear, maintained evidence is far more credible than an impressive plan that no one uses. Ultimately, an active configuration management plan ensures continuous alignment with NIST SP 800-171 and long-term CMMC compliance.
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