EU conformity assessment routes: Module A, B, C and beyond

CE marking is the outcome; the module is the road you take to it. Union harmonisation legislation sets out the assessment procedures as lettered modules, and each product act names the modules a manufacturer may choose from. Module A is internal production control with no notified body. Module B is EU type-examination by a notified body, always paired with Module C, C1, C2, D, E or F for the production stage. Modules G and H cover unit verification and full quality assurance. The practical question is never whether you like a module, it is which modules your act permits for your product class.

• Read the conformity assessment article of the act that governs the product, and list the modules it actually allows for your class; a module from another act is not available to you.
• Module A, internal production control: you carry out the assessment yourself against harmonised standards, compile the technical documentation and sign the declaration. Most electromagnetic compatibility and low voltage electronics run here.
• Module B, EU type-examination: a notified body examines the technical design of a representative sample and issues a certificate. It never stands alone; you pair it with a production-phase module.
• Module C, C1, C2: conformity to the examined type. C is declaration by the manufacturer, C1 adds product testing, C2 adds supervised checks at random intervals by the notified body.
• Modules D, E, F: quality assurance of production, of final product inspection, or product verification unit by unit or by statistics, each with a notified body in the loop.
• Modules G and H: unit verification, and full quality assurance covering design and production with an approved quality system, which is where medical devices and higher-risk machinery land.
• Choose the notified body from the Commission's NANDO list, and confirm it is designated for the exact act and annex you need; a designation for another directive is worthless for yours.
• Keep the module in the declaration of conformity: naming the procedure and the notified body number is part of what makes the declaration valid.

• GPSR Article 9: obligations of manufacturersArticle nodeOfficial text
• Cyber Resilience Act (EU) 2024/2847: assessment of products with digital elementsArticle node
• AI Act Article 43: conformity assessment of high-risk systemsArticle nodeOfficial text

• Decision 768/2008/EC on a common framework for the marketing of products, Annex II: conformity assessment modules
• Regulation (EC) 765/2008 on accreditation and market surveillance
• NANDO: the Commission's database of notified bodies

• CE marking for Indian manufacturers
• Importer, distributor and manufacturer responsibilities
• Machinery exports
• All requirements
• Indian law against EU law

Sector

Electronics, machinery, medical devices, radio equipment

Read date

2026-08-26

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in-export-v1.0.0

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/in/export/conformity-assessment