API 1164 vs IEC 62443

What is the difference between API 1164 and IEC 62443?

API 1164 is a other framework applying in the United States, with 108 controls across 5 domains. IEC 62443 is a other framework applying in International, with 303 controls across 6 domains. Both govern the same subject, so their requirements overlap; the mapping below shows which controls carry across and which are asked for by only one of them.

API 1164108 controls

IEC 62443303 controls

Questions people ask about API 1164 and IEC 62443

What is the difference between API 1164 and IEC 62443?

API 1164 has 108 controls while IEC 62443 has 303 controls. Both frameworks address compliance requirements but differ in scope, focus, and applicability. Use our platform to explore the exact control-to-control mappings.

Do I need both API 1164 and IEC 62443?

Whether you need both depends on your industry, regulatory requirements, and customer expectations. Many organizations implement multiple frameworks simultaneously. Our compliance platform helps you map controls between API 1164 and IEC 62443 so you can identify shared requirements and avoid duplicate effort.

How do API 1164 and IEC 62443 controls map to each other?

Our platform maps controls between API 1164 and IEC 62443 at a granular level. Each mapping shows whether controls are fully aligned, partially aligned, or represent gaps. This helps you prioritize implementation when pursuing both frameworks.

Which framework should I implement first, API 1164 or IEC 62443?

The best starting point depends on your specific regulatory requirements, industry, and customer demands. Consider which framework is most urgently required by your stakeholders or regulators. Use our free compliance platform to run a gap analysis and determine the optimal implementation sequence.