Part 3: FedRAMP Levels Explained: Low, Moderate, and High

Understanding which FedRAMP level an organization needs starts with knowing how the FedRAMP authorization tiers compare and what each level means for data sensitivity and compliance.

For many organizations supporting federal programs, especially those handling Controlled Unclassified Information (CUI), the FedRAMP Moderate tier aligns directly with required protections. Although some cloud providers pursue FedRAMP Moderate Authorization, others demonstrate compliance through FedRAMP Moderate Equivalency using an independent 3PAO assessment.

In this post, you will learn the differences between FedRAMP Low, Moderate, and High, how authorization compares to equivalency, and why RegDOX’s FedRAMP Moderate Equivalency offers the same security outcomes organizations rely on.

What Are the Three FedRAMP Impact Levels?

Federal Risk and Authorization Management Program (FedRAMP) defines three impact levels: Low, Moderate, and High. Each level is based on the sensitivity of the data processed in a cloud environment and maps to the NIST SP 800-53 Rev. 5 security control baselines used across federal systems.

FedRAMP Low Impact Level

• Data Type: Public or low-risk information
• Control Scope: Approximately 125 controls
• Use Cases: Public websites and non-sensitive applications
• Objective: Basic access control, data handling, and minimal impact protections

This level focuses on foundational safeguards suitable for systems where a breach would cause limited harm.

FedRAMP Moderate Impact Level

• Data Type: Controlled Unclassified Information (CUI) and unclassified defense-related data
• Control Scope: About 320+ controls based on NIST SP 800-53 Rev. 5 across 17 security families
• Use Cases: Defense contractors, universities, research labs, and regulated enterprises
• Objective: Protect the confidentiality and integrity of CUI, enforce access controls, monitor events, and support incident response

This level is the most widely used in the Defense Industrial Base because it aligns with DFARS, NIST SP 800-171, and CMMC Level 2 requirements.

FedRAMP High Impact Level

• Data Type: High-impact government systems
• Control Scope: 400 or more controls
• Use Cases: Law enforcement, emergency response, and national security
• Objective: Maximum protection for mission-critical or life-safety data

This level is reserved for environments requiring the strongest possible security measures.

FedRAMP Moderate Authorization and FedRAMP Moderate Equivalency

Both FedRAMP Moderate Authorization and FedRAMP Moderate Equivalency demonstrate that a cloud system meets the same Moderate baseline requirements. The difference is in the process used to achieve that determination.

FedRAMP Moderate Authorization

• Granted through the Joint Authorization Board or a sponsoring federal agency
• Results in an official Authority to Operate (ATO)
• Listed on the FedRAMP Marketplace
• Requires government-specific ongoing review and reporting

FedRAMP Moderate Equivalency

Demonstrates adherence to the same FedRAMP Moderate controls

• Achieved through an independent 3PAO assessment
• Supported by a complete Body of Evidence
• Does not require a federal sponsor or Marketplace listing
• Provides the same technical assurances for CUI protection

Both pathways evaluate the same security controls. Authorization focuses on federal sponsorship. Equivalency focuses on independent assessment and evidence.

To learn more about the assessment process, see Part 2: Demystifying FedRAMP Equivalency — How Independent Assessment Confirms Cloud Security.

Why FedRAMP Moderate Equivalency Matters

Organizations handling CUI must meet DFARS 252.204-7012, NIST SP 800-171, and CMMC Level 2 requirements. Operating within a FedRAMP-aligned Moderate environment helps satisfy these obligations.

With RegDOX’s FedRAMP Achievements, customers gain:

• A cloud environment assessed against all 320+ Moderate controls
• Inherited security safeguards aligned with DFARS and NIST frameworks
• Faster compliance readiness and simplified audit preparation
• A collaboration platform purpose-built for CUI handling
• Reduced risk and stronger assurance during CMMC assessments

By completing all 320+ controls based on NIST SP 800-53 Rev. 5 for FedRAMP Moderate Equivalency, RegDOX provides customers with full Moderate-level control coverage that supports consistent, end-to-end protection.

About RegDOX

At RegDOX Solutions Inc., we help defense contractors and high-security organizations simplify compliance with ITAR, EAR, DFARS, NIST SP 800-171, and CMMC requirements. Our secure, cloud-based platforms combine end-to-end encryption, access controls, and audit-ready documentation to keep your data—and your contracts—safe.

Need help navigating evolving cybersecurity regulations?

Request a Compliance Demo
Or contact us directly at info@regdox.com