Framework overlap

Does NIST SP 800-171A Rev 3 cover ISO 22301:2019?

You hold NIST SP 800-171A Rev 3 and have been told to do ISO 22301:2019. Here is how much overlaps, control by control.

46% of ISO 22301:2019 you already have

NIST SP 800-171A Rev 3 already covers about 46% of ISO 22301:2019, leaving 21 of 39 controls as genuinely new work.

Already covered 0 Likely covered 18 New work 21

No control in NIST SP 800-171A Rev 3 maps directly to one in ISO 22301:2019. Everything counted as covered is covered because both map to the same third standard, which is what a crosswalk is, but it is an inference rather than a lookup.

What is genuinely new work

Nothing in NIST SP 800-171A Rev 3 reaches these. This is the list to scope.

4.4
Management system
5.2
Policy
5.3
Roles, responsibilities and authorities
6.2
Objectives and planning to achieve them
7.2
Competence
7.3
Awareness
7.5
Documented information
7.5.2
Creating and updating
7.5.3
Control of documented information
8.3
Business continuity strategies and solutions
8.3.2
Identification of strategies and solutions
8.3.3
Selection of strategies and solutions
8.3.5
Implementation of solutions
8.4
Business continuity plans and procedures
8.4.2
Response structure
8.4.3
Warning and communication
8.4.4
Business continuity plans
8.4.5
Recovery
8.5
Exercise programme
8.6
Evaluation of business continuity documentation and capabilities
9.2
Internal audit
Show the 18 you already have
10.1
Continual improvement
10.2
Nonconformity and corrective action
4.1
Understanding the organization and its context
4.2
Understanding the needs and expectations of interested parties
4.3
Determining the scope of the management system
5.1
Leadership and commitment
6.1
Actions to address risks and opportunities
6.1.2
Risk assessment
6.1.3
Risk treatment
7.1
Resources
7.4
Communication
8.1
Operational planning and control
8.2
Business impact analysis and risk assessment
8.2.2
Business impact analysis
8.2.3
Risk assessment
8.3.4
Resource requirements
9.1
Monitoring, measurement, analysis and evaluation
9.3
Management review

How this is calculated

Already covered means a mapping runs from a control in NIST SP 800-171A Rev 3 to that control. Likely covered means no direct mapping exists but both frameworks map to the same control in a third standard. New work means neither. We keep those separate rather than adding them into one friendlier number, because blending them would present a two-hop inference as a verified fact.

Coverage is not symmetric. Run it the other way and you will get a different number; both are correct.

From 332,959 cross-framework control mappings across 723 frameworks, 531 of them verified against their source documents. It does not tell you that you are compliant: a mapped control means the two standards ask for the same thing, not that you have done it.

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