What is CMMC Compliance, and Why Should You Care?

Quick Answer

CMMC (Cybersecurity Maturity Model Certification) is a Department of Defense cybersecurity framework designed to help contractors and suppliers protect sensitive government information. CMMC 2.0 uses three certification levels, with requirements based largely on NIST security standards. The level an organization needs depends on the type of information it handles and the requirements of its DoD contracts.

Key Takeaways

• CMMC helps protect sensitive information handled by organizations working with the Department of Defense (DoD).
• CMMC 2.0 has three certification levels, with requirements increasing based on the type and sensitivity of information an organization handles.
• CMMC requirements are largely based on NIST standards, including NIST SP 800-171 and related cybersecurity controls.

Update: As of November 10, 2025, the CMMC has gone into full effect. Federal contractors must now demonstrate full compliance with CMMC as part of all of their contracts going forward. If your organization needs help meeting CMMC requirements, Red River can help. Contact us today! In the meantime, we hope you enjoy our blog explaining how to be CMMC compliant below.

Organizations that support Department of Defense programs and work with sensitive government data are expected to follow established cybersecurity standards. CMMC, or Cybersecurity Maturity Model Certification, provides a framework for evaluating whether defense contractors and suppliers have the security practices and controls needed to protect that information.

CMMC 2.0 organizes these requirements into three cybersecurity maturity levels, with each level addressing a different degree of security responsibility. The level an organization needs depends on factors such as the type of information it handles and the requirements of its DoD contract. 

In this guide, we explain what CMMC compliance means, who needs it, how the three levels differ, what requirements organizations must meet, and how the certification process works. 

WHAT IS CMMC COMPLIANCE?

The CMMC, or Cybersecurity Maturity Model Certification, is a framework developed by the United States Department of Defense (DoD) to enhance the cybersecurity practices and controls of organizations within the defense industrial base (DIB). The DIB includes a vast network of contractors, suppliers and service providers that work with the DoD and handle sensitive information, making them potential targets for cyberattacks.

The CMMC ensures that contractors and suppliers protect sensitive information and maintain a strong cybersecurity posture. It builds upon existing standards and practices, such as NIST SP 800-171 and NIST SP 800-53, and introduces a tiered certification model with three cybersecurity compliance maturity levels.

From 2019 to 2021, CMCC compliance requirements had five tiers. In 2021, the CMMC 2.0 release greatly simplified requirements with the goal of:

• Protecting sensitive military intelligence
• Enforcing cybersecurity standards across the DIB
• Ensuring accountability with CMMC compliance
• Creating better collaboration between vendors and the government
• Maintaining public trust

Organizations must consult the existing CMMC security framework and documents to determine where a company falls within CMMC compliance requirements. It can be an extensive process; many organizations need the help of an expert partner to discover where they fall on the CMMC security levels and whether there are gaps in their system or improvements they can make in order to achieve CMMC compliance.

At its core, the CMMC compliance requirements determine how mature an organization’s cybersecurity initiatives are. This CMMC compliance evaluation includes whether the organization can maintain its security and improve by making it more efficient and better optimized. It also includes whether an organization is proactively or reactively manage its security and how rigorous its security measures are.

What Is CMMC Certification? Who Needs It and When Is It Required? 

CMMC certification is a formal verification that an organization has implemented the cybersecurity practices required to protect sensitive DoD information. 

CMMC certification is required for organizations operating with DoD information. If the organization operates with non-classified DoD information, it may only need a CMMC security clearance of Level 1, or not at all. If the organization is operating with high-value information, it will likely need a CMMC security clearance of Level 2 or higher. However, classifications requirements are established by the government project itself.

What Are the CMMC 2.0 Levels? 

Initially, there were five total levels of CMMC certification, with Level 1 CMMC compliance being the most basic and Level 5 CMMC compliance being the highest. As part of CMMC 2.0, the CMMC security levels have been reworked, and there are 3 current levels of CMMC certification for any business that looks to work as a federal contractor to achieve.

Level 1 – Foundational is what most companies should already have achieved; this includes basic security systems, password hygiene and antivirus protection software. There are 17 CMMC compliance requirements at this level, making Level 1 the most foundational form of security. At this level, organizations can self-report annually on their CMMC compliance.

Level 1 CMMC certification is generally for DoD vendors that handle Federal Contract Information. These vendors are external to the generally accepted critical government infrastructure.

Level 2 – Advanced builds from Level 1. There are 110 CMMC compliance requirements at this level. This level focuses on physical access control, cybersecurity incident response, risk management and system integrity.

Level 2 CMMC certification is for vendors handling Controlled Unclassified Information (CUI). Organizations accepted into the Level 2 CMMC security framework are considered part of the critical infrastructure for government IT operations.

Level 3 Expert CMMC certification is the highest level and includes proactive methods to detect and mitigate threats before they begin, as well as systems and processes in place to audit infrastructure, identify gaps and fix them. Level 3 CMMC compliance requires rigor around sophisticated detection and mitigation abilities. There are also system hardening requirements.

Levels under the CMMC build upon each other. So, Level 3 companies will fulfill Level 3, Level 2 and Level 1 requirements. Organizations seeking Level 3 CMMC compliance are assessed by the government’s Defense Contract Management Agency.

Whether they work with the government or not, most organizations should strive for at least Level 2 compliance because this makes for a much more secure business overall. They can get help through an audit from a managed services provider. Following CMMC compliance requirements is a solid approach for applying data protection strategies to handle increasingly complex and aggressive cybersecurity threats.

CMMC 2.0 Requirements by Level 

CMMC Level	Who It Applies To	Key Requirements
Level 1 (Foundational)	Contractors handling Federal Contract Information (FCI)	Basic cyber hygiene, access control, password protection, secure devices, and basic incident response
Level 2 (Advanced)	Contractors handling Controlled Unclassified Information (CUI)	110 security requirements aligned with NIST SP 800-171, risk management, incident response, audit logging, multifactor authentication, and system security
Level 3 (Expert)	Organizations supporting critical national security programs	Level 2 requirements plus additional controls based on NIST SP 800-172 to defend against advanced persistent threats (APTs)

Which Level Would My Organization Need? (Real-World Examples)

The CMMC level an organization needs depends primarily on the type of information it handles and the requirements of its specific DoD contract. The following examples provide a general guide:

• Level 1: A small supplier that handles Federal Contract Information (FCI) but does not handle Controlled Unclassified Information (CUI) may need Level 1.
• Level 2: A defense contractor that stores, processes, or transmits CUI as part of a DoD contract may need Level 2.
• Level 3: An organization handling highly sensitive CUI and supporting DoD programs involving advanced or high-priority threats may be required to meet Level 3 requirements.

These examples are general. The specific CMMC level an organization must achieve is determined by the requirements of its applicable DoD contract and the type of information involved. Organizations should review their contract requirements to determine which CMMC level applies.

Red River Tip: Before beginning your CMMC assessment, confirm which DoD contract requirements apply to your organization and identify whether your environment handles FCI, CUI, or both. This helps ensure you are preparing for the correct CMMC level and assessment scope. 

WHAT ARE THE CMMC COMPLIANCE REQUIREMENTS?

The CMMC compliance requirements are heavily based around the NIST (National Institute of Standards and Technology), specifically, its SP 800-171 set of guidelines, which governs everything from section 3.5, Identification and Authentication, to chapter 3.10, Physical Protection, and much more.

To summarize the requirements:

• Level 1 CMMC compliance requires meeting 15 requirements in SP 800-171
• Level 2 requires meeting 110 requirements as determined by a third-party assessment (and Level 1 requirements)
• Level 3 requires exceeding 110 SP 800-171 requirements as determined by a government-led assessment, as well as meeting Level 1 and 2 CMMC compliance requirements

For DoD contractors, there are several general steps necessary to achieve CMMC compliance. Here are a few of the rigorous CMMC compliance requirements.

CMMC Level 1

Create and maintain:

• An incident response document and process
• A vulnerability management document and process
• A patch management system
• Access controls to IT systems and data
• Physical controls for these systems
• Secure communications
• And more

CMMC Level 2

Monitor and control:

• System vulnerabilities
• Attempts to gain unauthorized access to systems and data
• Communications at the applications, network and system layers
• Cybersecurity training for end-users with access to these systems
• IT systems even during acquisition, development and maintenance
• And more

CMMC Level 3

Implement and maintain:

• Company-wide up-to-date cybersecurity protocols
• Identity and access for devices, systems, and end-users
• An effective detection and mitigation program
• Continuous monitoring of all digital systems and data
• And more

How Do You Get CMMC Certification? 

How does you get CMMC certification for an organization?

Generally, there are seven critical steps for beginning the process of CMMC certification:

1. Select the CMMC security level you’re applying for
2. Identify current assets affected by CMMC requirements
3. Identify additional IT resources necessary to achieve your desired level of compliance
4. Select a technical design for your CMMC cybersecurity architecture
5. Find a managed service provider able to conduct a CMMC audit
6. Prepare the necessary documents for CMMC
7. Complete and submit the CMMC assessment

Companies are not allowed to self-certify for CMMC at the highest levels. Instead, government contractors and those working with government entities must undergo a third-party certification process. The unbiased third party audits a company’s current security measures and methods and identify what level of maturity and preparedness they meet.

Because CMMC certification cannot be self-certified and requires a third-party analysis, most companies will undergo a thorough audit before they attempt to certify. A managed services provider called a C3PAO, can help a company go through the CMMC framework, determine whether cybersecurity improvements could occur and organize the certification process itself. Once the certification process is complete, a managed services provider can also create a game plan for improving the level of certification – if needed.

As requirements have recently changed, CMMC certification is one of the most popular types of security certification for a company to pursue. With CMMC certification, a company can pursue government contracts and deal with privileged information.

Click here to get the ebook on CMMC compliance.

What Are the Benefits of CMMC Compliance?

CMMC compliance helps organizations strengthen their cybersecurity practices while demonstrating that they can protect sensitive information required under DoD contracts. Beyond meeting contractual requirements, maintaining CMMC compliance can provide several business and security benefits.

• Protects sensitive information: CMMC requirements help organizations safeguard Federal Contract Information (FCI) and Controlled Unclassified Information (CUI) from unauthorized access, loss, and cyber threats.
• Supports DoD contract eligibility: Meeting the CMMC requirements specified in a DoD contract can help an organization remain eligible to bid on and perform certain defense contracts.
• Strengthens cybersecurity: CMMC provides a structured approach to implementing security practices, identifying weaknesses, and improving an organization’s overall security posture.
• Reduces cybersecurity risk: Implementing access controls, incident response procedures, vulnerability management, and other safeguards can help organizations prevent security threats and limit the potential impact of cyber incidents.
• Improves customer and partner confidence: Demonstrating compliance can give DoD customers, prime contractors, and other business partners greater confidence in an organization’s ability to protect sensitive information.
• Creates a consistent security framework: CMMC gives organizations a defined set of cybersecurity practices and requirements that can be used to establish and maintain a more mature security program.

What Are the Biggest Challenges of CMMC Compliance?

Meeting CMMC requirements can take considerable time, resources, and coordination, especially for organizations that need to make significant changes to their existing cybersecurity practices. Common challenges organizations may face include: 

• Understanding the applicable requirements: Determining which CMMC level applies and which systems, assets, and information fall within the assessment scope can be complex.
• Identifying security gaps: Organizations must determine whether their current cybersecurity practices align with CMMC requirements and address any weaknesses or deficiencies identified during the review. 
• Implementing required security controls: Addressing identified gaps may require changes to access controls, endpoint security, network protections, vulnerability management, incident response, and other cybersecurity practices.
• Maintaining required documentation: Organizations need to maintain appropriate policies, procedures, plans, and evidence to demonstrate that required security practices are implemented and operating effectively.
• Managing costs and resources: CMMC compliance may require investments in technology, cybersecurity expertise, employee training, assessments, and ongoing security management.
• Maintaining compliance over time: CMMC is not simply a one-time exercise. Organizations must continue following applicable security requirements and complete required assessments or affirmations to maintain compliance.

RedRiver Insight: CMMC preparation is often more than implementing individual security controls. Organizations also need to understand where sensitive information resides, which systems are in scope, and whether their policies and documentation support the controls they have implemented. 

What Are the Best Practices for Maintaining CMMC Compliance?

Maintaining CMMC compliance requires organizations to continuously monitor their cybersecurity practices, address vulnerabilities, and keep required documentation up to date. Some best practices include:

• Regularly review security controls: Periodically evaluate security controls to ensure they remain effective and aligned with applicable CMMC requirements.
• Keep systems and software updated: Apply security patches and updates promptly to address known vulnerabilities.
• Monitor for security threats: Use appropriate monitoring and detection tools to identify suspicious activity, unauthorized access, and potential security incidents.
• Maintain accurate documentation: Keep policies, procedures, system documentation, and other compliance evidence current and readily available.
• Conduct regular security assessments: Perform internal reviews or gap assessments to identify weaknesses before formal CMMC assessments.
• Train employees: Provide ongoing cybersecurity training so employees understand their responsibilities for protecting FCI and CUI.
• Manage access controls: Regularly review user permissions and remove unnecessary access to systems and sensitive information.
• Maintain an incident response process: Keep incident response procedures current and regularly test them to ensure the organization can respond effectively to cybersecurity incidents.

WHAT IS A C3PAO AND WHY DO I NEED ONE FOR CMMC COMPLIANCE?

A C3PAO, or Certified Third-Party Assessment Organization, is an independent entity authorized and certified by the Cybersecurity Maturity Model Certification Accreditation Body (CMMC-AB) to conduct assessments and audits of organizations seeking CMMC compliance. C3PAOs play a crucial role in the CMMC security framework, as they evaluate the cybersecurity practices and controls of defense contractors and suppliers within the defense industrial base (DIB).

The main responsibilities of C3PAOs include:

1. Conducting CMMC Assessments: C3PAOs perform assessments and audits of organizations to determine their compliance with CMMC requirements. They evaluate an organization’s cybersecurity practices, controls, and maturity level to ensure they meet the specific CMMC level required for their contracts.
2. Providing CMMC Certification: Based on their assessments, C3PAOs issue certifications to organizations, confirming their level of CMMC compliance. This certification is important for organizations to bid on or participate in DoD contracts.
3. Impartiality and Objectivity: The government requires C3PAOs to be independent and objective in their assessments, ensuring that the evaluation process is unbiased and accurate.
4. Reporting and Documentation: C3PAOs generate assessment reports and documentation that outline an organization’s compliance status, any deficiencies found, and recommendations for improvement.

C3PAOs are instrumental in helping the DOD and the defense industry establish and maintain a strong cybersecurity posture as part of the CMMC security initiative. Their assessments assure the DoD and other government entities that organizations in the defense supply chain are implementing the necessary security controls to protect sensitive information and are following the guidelines outlined in the CMMC framework.

Do You Need CMMC Compliance If You Don’t Work With the Government? 

If you’re interested in working with the government, your organization may still need CMMC compliance. CMMC compliance requirements will vary depending on the contract, with many projects requiring only Level 1 or Level 2 compliance. Other contracts require up to Level 3. And, understandably, the contracts that require higher CMMC certification levels are also the contracts that are most likely to be lucrative.

But not working with government or DoD contracts doesn’t necessarily mean you don’t need CMMC compliance. The basic principles of CMMC compliance relate to proactive and consistent security best practices. Every organization should be able to achieve CMMC compliance, if only for their own peace of mind.

How Can Red River Help You Achieve CMMC Compliance? 

We hope we’ve answered the question “What is CMMC compliance” to your satisfaction over the course of this article.

Are you interested in finding out whether your business meets CMMC compliance? Do you need some help with CMMC regulations or conducting a CMMC audit? Red River can help. Red River meets three critical qualifications for ensuring you meet or exceed current CMMC compliance requirements:

1. Red River is a Level 3 CMMC compliant company
2. We were recently awarded a 10-year, $13 billion contract with the DoD
3. We are a C3PAO

Red River offers clients seeking CMMC compliance four critical services:

1. Auditing current security standards against your CMMC compliance goals
2. Planning and roadmapping security improvements that eliminate infrastructure disruptions while achieving CMMC compliance requirements
3. Implementing the cybersecurity changes to achieve and meet CMMC compliance deadlines
4. Maintaining CMMC after you’ve achieved this milestone

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