CEN is one of three European Standardization Organizations and develops standards for numerous kinds of products, materials, services and processes. Some sectors covered by CEN include transport equipment and services, chemicals, construction, consumer products, defence and security, energy, food and feed, health and safety, healthcare, digital sector, machinery or services.

CEN adopts ISO standards in Europe, through the prefix “EN ISO”.

CEN standards are commonly referred to in European legislation and policies, like in the case of CENELEC or ETSI European Standards.

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