Framework overlap

Does ISO 27018 cover ISO 45001:2018?

You hold ISO 27018 and have been told to do ISO 45001:2018. Here is how much overlaps, control by control.

30% of ISO 45001:2018 you already have

ISO 27018 already covers about 30% of ISO 45001:2018, leaving 31 of 44 controls as genuinely new work.

Already covered 0 Likely covered 13 New work 31

No control in ISO 27018 maps directly to one in ISO 45001:2018. 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 ISO 27018 reaches these. This is the list to scope.

5.4
Establishing Audit Programme
6.1.2.2
Assessment of OH&S risks and other risks to the OH&S MS
6.1.2.3
Assessment of OH&S opportunities and other opportunities for the OH&S MS
7.5
Threat assessment
8.1.2
Eliminating hazards and reducing OH&S risks
8.1.4.1
Procurement, general
8.1.4.2
Contractors
8.1.4.3
Outsourcing
10.2
Incident, nonconformity and corrective action
10.3
Continual improvement
4.2
Understanding the needs and expectations of workers and other interested parties
4.4
OH&S management system
5.1
Leadership and commitment
5.3
Organizational roles, responsibilities and authorities
5.4
Consultation and participation of workers
6.2.1
OH&S objectives ISO 45001:2018
6.2.2
Planning to achieve OH&S
7.1
Resources
7.2
Competence
7.3
Awareness
7.4
Communication
7.4.2
Internal communication
7.5
Documented information
7.5.2
Creating and updating
7.5.3
Control of documented information
8.1.2
Eliminating hazards and reducing OH&S risks
8.1.4
Procurement
9.1
Monitoring, measurement, analysis and performance evaluation
9.1.2
Evaluation of compliance
9.2
Internal audit
9.2.2
Internal audit programme
Show the 13 you already have
6.1.2.1
Hazard identification
8.1.1
Operational planning and control, general
8.1.3
Management of change
4.1
Understanding the organization and its context
4.3
Determining the scope of the OH&S management system
5.2
OH&S policy
6.1
Actions to address risks and opportunities
6.2
OH&S objectives and planning to achieve them
7.4.3
External communication
8.1
Operational planning and control
8.1.3
Management of change
8.2
Emergency preparedness and response
9.3
Management review

How this is calculated

Already covered means a mapping runs from a control in ISO 27018 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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