A Beginner's Guide to NIST and CMMC Compliance Steps to Get Started
- John W. Harmon, PhD

- Sep 20
- 4 min read
In today's digital world, keeping sensitive information secure is more important than ever. Organizations working with the U.S. Department of Defense (DoD) or dealing with Controlled Unclassified Information (CUI) must comply with the National Institute of Standards and Technology (NIST) guidelines and the Cybersecurity Maturity Model Certification (CMMC). This guide will help you understand how to achieve NIST and CMMC compliance, providing a straightforward roadmap for beginners.
Understanding NIST and CMMC
NIST offers a framework of standards to help organizations manage and reduce cybersecurity risks. Specifically, the NIST Special Publication 800-171 outlines requirements for protecting CUI in non-federal systems and organizations.
CMMC, on the other hand, is a certification program that builds on NIST standards. It introduces a maturity model that assesses an organization's cybersecurity practices across multiple levels, from basic to advanced. Each level has its own set of practices and processes that organizations must implement, with Level 1 focusing on basic cyber hygiene and Level 5 emphasizing advanced and progressive practices.
Both NIST and CMMC compliance are vital for organizations that wish to secure contracts with the DoD, demonstrating a strong commitment to protecting sensitive information.

Step 1: Assess Your Current Security Posture
Understanding your current security posture is the first step toward compliance. Conduct a detailed assessment to identify your existing security measures, vulnerabilities, and areas needing improvement. Computer solutions can get you started with the initial assessment.
This assessment should cover:
Review of Policies: Take stock of your current security policies and procedures. Are they up-to-date and relevant? For example, evaluate whether your incident response plan is effective in a real-world scenario.
Inventory of Systems: Compile a list of systems and data that need protection, including databases holding CUI or other sensitive information.
Risk Identification: Identify potential risks and threats. This could involve analyzing past security incidents or evaluating potential threats from evolving cyber risks.
Scope: Clearly define boundaries, both physical and electronic
By accurately identifying your current situation, you can create a focused plan for achieving compliance.
Step 2: Familiarize Yourself with NIST and CMMC Requirements
Once you assess your security posture, the next step is to understand the specific requirements of NIST and CMMC.
For NIST, focus on the families of security requirements outlined in NIST SP 800-171, which include:
Access Control - For example, implementing role-based access control (RBAC) to limit data access based on job roles.
Audit and Accountability - Regularly reviewing logs to detect any unauthorized access attempts.
Risk Assessment - Performing an annual risk assessment to identify vulnerabilities, with particular attention to any high-risk areas.
Incident Response - Establishing a team and a clear process for responding to security incidents.
For CMMC, review the levels of maturity, which each have specific practices and processes that must be implemented at different stages of your compliance journey.
Step 3: Develop a Compliance Plan
With a clear grasp of the NIST and CMMC requirements, it's time to develop your compliance plan. This plan should detail the steps your organization will take to meet necessary standards.
Key components of your compliance plan should include:
Timeline: Set a realistic timeline for achieving compliance. Research indicates that organizations may take anywhere from six months to over a year to become fully compliant, depending on their size and current status.
Resources: Determine what resources are necessary, including personnel training, technology upgrades, and budget allocations.
Responsibilities: Clearly assign roles and responsibilities to team members to ensure accountability. For instance, designate a compliance officer who will oversee the entire process.
A well-organized compliance plan will serve as a roadmap, guiding your organization through various compliance steps. At Computer Solutions, we can help create the documentation\controls that are required under NIST\CMMC compliance.
Step 4: Implement Security Controls
Next, implement the necessary security controls as outlined in your compliance plan. Your implementation may consist of:
Policy Updates: Regularly revise your security policies to reflect new practices and approaches.
Technical Controls: Install security technologies, such as firewalls, intrusion detection systems, and data encryption tools. For example, using encryption can protect CUI data at rest and in transit, significantly lowering potential risks.
Employee Training: Provide comprehensive training programs for your employees. Training should clarify their roles in maintaining security and prepare them for potential threats.
Keep thorough documentation of all changes and implementations. This will be critical for future audits and assessments.
Step 5: Conduct Regular Audits and Assessments
Compliance is not a one-time task; it requires ongoing monitoring and assessments. Regular audits are essential to evaluate the effectiveness of your security controls and ensure they meet NIST and CMMC standards.
During audits, consider:
Reviewing incident response plans to ensure they are still applicable.
Analyzing the effectiveness of employee training programs and adapting them based on feedback and incident reports.
Identifying any emerging risks or vulnerabilities which have arisen since your last assessment.
Frequent audits will not only help maintain compliance but also promote a culture of continuous improvement within your organization.
Step 6: Prepare for Certification
If your organization aims for CMMC certification, you must prepare thoroughly for the certification process. This preparation involves:
Verifying that all required practices and processes are adequately in place.
Conducting a pre-assessment to uncover any gaps that need addressing. In fact, organizations that perform a pre-assessment are 25% more likely to pass their final certification assessment on the first attempt.
Choosing a certified third-party assessor to conduct the official assessment. Partnering with experienced assessors can provide valuable insight into the process.
Being well-prepared increases your chances of achieving certification and securing contracts with the DoD.
Navigating the Path to Compliance
Achieving NIST and CMMC compliance might feel overwhelming. However, by following these structured steps, you can create a clear path toward securing sensitive information and fulfilling regulatory requirements. Start by assessing your current security posture and familiarizing yourself with the standards. Then develop a detailed compliance plan and implement necessary security controls.
Keep in mind that compliance is an ongoing journey requiring regular audits and assessments. Committing to these steps will not only help you meet compliance standards but also enhance your overall cybersecurity posture. Computer Solutions can help in your journey to NIST/CMMC compliance.
As you take these initial steps, you are positioning your organization for success in the ever-changing landscape of cybersecurity.
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