CMMC Readiness Execution Playbook

What This Playbook Covers

Achieving CMMC readiness requires a structured, repeatable process that aligns technical controls, documentation, and operational practices. This playbook outlines how to prepare, implement, validate, and maintain a compliant Microsoft 365 environment aligned with NIST SP 800-171 and CMMC requirements.

Important: CMMC is not just a technical exercise. Without aligning systems, documentation, and operations together, organizations will fail assessments even if tools are in place.

When This Playbook Is Used

Preparing For CMMC Assessment

The organization is planning for a formal CMMC Level 2 or equivalent assessment.

Handling Controlled Unclassified Information

The organization stores, processes, or transmits CUI and must align with NIST 800-171.

Remediating Compliance Gaps

Existing systems or processes are identified as non-compliant or insufficient during readiness review.

Execution Steps

01

Define Scope

Identify systems, users, and environments that interact with CUI and establish system boundaries.

02

Assess Current State

Evaluate existing controls, configurations, and processes against NIST 800-171 requirements.

03

Implement Required Controls

Configure identity, access, security, and data protection controls within Microsoft 365 environments.

04

Develop Required Documentation

Create System Security Plans (SSP), POA&M, policies, and procedures aligned with control requirements.

05

Validate And Test Controls

Confirm controls are properly implemented, functioning, and aligned with operational use cases.

06

Maintain And Continuously Improve

Monitor controls, update documentation, and sustain compliance through ongoing operational processes.

Operational Requirements

Defined Compliance Ownership

Clear accountability must exist for maintaining controls, documentation, and audit readiness.

Continuous Monitoring

Systems must be monitored to detect drift from configured security baselines and control requirements.

Change Management Discipline

Changes to systems and configurations must be controlled, documented, and validated against compliance requirements.

Expected Outcome

  • Systems and processes align with NIST 800-171 requirements
  • Documentation supports audit and assessment readiness
  • Security controls are implemented and operationalized
  • The organization is prepared for CMMC assessment