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Framework · NIST SP 800-53

NIST SP 800-53: the control catalog behind FedRAMP and CMMC

NIST catalog of security and privacy controls for US federal information systems: 20 control families, three baselines, Revision 5, behind FedRAMP and CMMC.

NIST Special Publication 800-53 is one of the most comprehensive security control catalogs: over 1,000 controls and enhancements across 20 families. Published by NIST, it underpins FedRAMP, CMMC, and most US federal agency security requirements and federal and defence contracts. Revision 5 integrated privacy controls for the first time, making it the reference for organizations managing both security and privacy for federal data.

Key facts

  • 20: control families covering every aspect of federal information system security.
  • Revision 5: over 1,000 controls and enhancements, with integrated privacy controls and the new SR family.
  • 3: impact levels (Low, Moderate, High), each with its own baseline.
  • FedRAMP: the Moderate baseline is the foundation of FedRAMP authorization.

What 800-53 Rev. 5 covers

You select a baseline based on your system's impact categorization, then implement the applicable controls and document them in a System Security Plan.

  1. AC Access Control, AU Audit and Accountability, CA Assessment and Authorization
  2. CM Configuration Management, CP Contingency Planning
  3. IA Identification and Authentication, IR Incident Response
  4. RA Risk Assessment, SA System and Services Acquisition, SC System and Communications Protection
  5. SI System and Information Integrity, SR Supply Chain Risk Management (new in Rev. 5)
  6. Documentation: System Security Plan (SSP), Plan of Action and Milestones (POA&M), periodic control assessments (SAR)

What Sentrix provides for 800-53

Baseline selection and tailoring

Pre-built Low, Moderate, and High baselines. Tailoring support to add, remove, or modify controls based on your system environment and risk tolerance.

System Security Plan (SSP)

800-53 requires a documented System Security Plan. Sentrix generates your SSP from your actual control implementations: control descriptions, implementation status, and responsible roles populated automatically.

FedRAMP alignment

FedRAMP Moderate uses the 800-53 Moderate baseline with additional FedRAMP-specific parameters. Sentrix maps both simultaneously so organizations pursuing FedRAMP authorization build on their 800-53 program directly.

POA&M tracking

A Plan of Action and Milestones is required for all open findings. Sentrix tracks POA&M items, scheduled completion dates, responsible parties, and evidence of remediation for every gap.

Periodic assessment support

800-53 requires periodic control assessments. Sentrix generates the Security Assessment Report (SAR) framework and the continuous evidence that feeds your assessment cycle.

Crosswalks

  • CMMC 2.0: Level 2 maps to NIST SP 800-171, derived from 800-53; Sentrix shows which 800-53 controls satisfy CMMC practices.
  • NIST CSF 2.0: catalog controls are mapped to CSF subcategories.
  • ISO 27001: crosswalk to the Annex A controls.
  • SOC 2: crosswalk to the Trust Services Criteria.

Further reading

Compliance automation.

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Frequently asked questions

What is an 800-53 baseline?
A baseline is the set of controls to implement according to your system's impact categorization: Low, Moderate, or High. You select the matching baseline, then tailor it by adding, removing, or modifying controls based on your environment and risk tolerance. Sentrix pre-loads the right baseline for your system and begins collecting evidence immediately.
How do 800-53, FedRAMP and CMMC relate?
FedRAMP Moderate uses the 800-53 Moderate baseline with additional FedRAMP-specific parameters. CMMC 2.0 Level 2 maps to NIST SP 800-171, which itself derives from 800-53. An organization that builds its program on 800-53 therefore reuses its controls for a FedRAMP authorization or a CMMC certification without duplicating compliance work.
What is a POA&M?
A Plan of Action and Milestones (POA&M) is required for all open findings: every control gap gets an entry with a scheduled completion date, a responsible party, and evidence of remediation. Sentrix tracks POA&M items, and the System Security Plan (SSP) and the Security Assessment Report (SAR) are fed by the same continuous evidence.

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Last updated: 2026-09-17