NIST SP 800-53 Rev 5vsNIST SP 800-66 Rev 2
See exactly how NIST SP 800-53 Rev 5 controls map to NIST SP 800-66 Rev 2. Pre-computed mappings, identified gaps, and coverage analysis.
Need this as a report you can hand to an assessor? A coverage crosswalk for this pair can be built to order.
According to the TheArtOfService Compliance Knowledge Graph:
NIST SP 800-53 Rev 5 maps to NIST SP 800-66 Rev 2 with 37% coverage across 131 directly mapped controls. Analysis of 320 NIST SP 800-53 Rev 5 controls identifies 189 compliance gaps, primarily concentrated in SC - System and Communications Protection.
Source: TheArtOfService Knowledge Graph | 320 controls analysed | 686 frameworks | 309K+ cross-framework mappings
Control Mappings
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AC - Access Control(20 mappings)
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A NIST SP 800-53 Rev 5 to NIST SP 800-66 Rev 2 crosswalk, built to order
The table above lists candidate mappings. A crosswalk answers the narrower question you are probably here for: which NIST SP 800-66 Rev 2 controls your existing NIST SP 800-53 Rev 5 work already satisfies, which are real gaps, and the reasoning behind every claim so you can check it. One pair, $299, one time.
This direction has not been through crosswalk review and sign off, so no coverage figure is published for it. Reporting an unreviewed number would be worse than reporting none. It can be built to order at the same price as a pair that is already on the shelf.
If the two frameworks turn out to have too little in common for a crosswalk to help you, we say so and refund it rather than send a number worth nothing.
This direction has not been through crosswalk review and sign off, so no coverage figure is published for it. Reporting an unreviewed number would be worse than reporting none. It can be built to order at the same price as a pair that is already on the shelf.
If the two frameworks turn out to have too little in common for a crosswalk to help you, we say so and refund it rather than send a number worth nothing.
- Every evidenced control, with the reasoning behind it
- Every gap, with what it requires
- Its level of review stated plainly, not a bare number
Why this page shows two different percentages. The 37% in the header counts how many NIST SP 800-53 Rev 5 controls carry at least one candidate mapping in the graph, before any review. The crosswalk percentage counts something stricter: how many NIST SP 800-66 Rev 2 controls are actually evidenced, after a pass that argued against each mapping and kept only what survived. They answer different questions and they are not meant to agree.
A crosswalk narrows the work. It does not replace an audit, and your assessor may take a different view on individual controls. Mappings between frameworks are judgements, not text printed in either standard, which is why every claim in the report shows its reasoning. Questions go to support@theartofservice.com.
Related Comparisons
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Other NIST SP 800-66 Rev 2 comparisons
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What are the key differences between NIST SP 800-53 Rev 5 and NIST SP 800-66 Rev 2?
NIST SP 800-53 Rev 5 has 320 controls across its framework, while NIST SP 800-66 Rev 2 covers 65 controls. Direct mapping analysis identifies 131 overlapping controls (37% coverage). The frameworks diverge most significantly in SC - System and Communications Protection, where 33 NIST SP 800-53 Rev 5 controls have no direct NIST SP 800-66 Rev 2 equivalent.
How many controls map between NIST SP 800-53 Rev 5 and NIST SP 800-66 Rev 2?
Of 320 total NIST SP 800-53 Rev 5 controls, 131 map directly to NIST SP 800-66 Rev 2 controls, representing 37% coverage. The remaining 189 controls represent compliance gaps requiring additional documentation or compensating controls to satisfy both frameworks simultaneously.
What are the compliance gaps when mapping NIST SP 800-53 Rev 5 to NIST SP 800-66 Rev 2?
189 NIST SP 800-53 Rev 5 controls have no direct equivalent in NIST SP 800-66 Rev 2. The highest concentration of gaps is in SC - System and Communications Protection with 33 unmapped controls. These gaps represent areas where additional controls, policies, or documentation must be created to achieve compliance with both frameworks.
Which control domains have the most gaps between NIST SP 800-53 Rev 5 and NIST SP 800-66 Rev 2?
The domain with the highest gap count is SC - System and Communications Protection (33 gaps). Export the full domain-by-domain gap breakdown via the Professional tier to generate a prioritised remediation roadmap.
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This platform provides educational compliance tools, not legal, regulatory, or professional compliance advice. Cross-framework mappings are AI-assisted interpretations and do not reproduce or replace official standards. Framework names and trademarks belong to their respective owners. Consult qualified professionals for your specific compliance requirements. See our Terms of Service.