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Green Oak Cyber Strategies
CMMC • ISO 27001 • NIST 800-172
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Primary sourcesDoD / NIST / ISO

Resources

Official references and guidance we use to align programs and evidence. (We link to primary sources whenever possible.)

CMMC 2.0 Model Overview

DoD

Official DoD source for CMMC background and model structure (Levels, domains, practices).

Open source →

NIST SP 800-171

NIST

Protecting Controlled Unclassified Information (CUI) in nonfederal systems and organizations.

Open source →

NIST SP 800-172

NIST

Enhanced security requirements for protecting CUI against advanced persistent threats.

Open source →

ISO/IEC 27001 (Overview)

ISO

Information Security Management Systems (ISMS) standard overview from ISO.

Open source →

NIST Cybersecurity Framework (CSF)

NIST

High-level framework for managing cybersecurity risk (Identify, Protect, Detect, Respond, Recover).

Open source →

Note: These resources are provided for reference. They are not legal advice and do not replace tailored scoping and implementation. Do not submit CUI or sensitive information via web forms.