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Standards

Extension

An extension adds fields that the EN 16931 core does not know, in contrast to a CIUS, which may only restrict. Using one leaves the zone of guaranteed European interoperability and requires an agreement with the recipient.

Also:
EN-16931-Extension · Erweiterung
Reviewed on 2026-08-26.

There is no long-form article for this term yet. The definition above is the complete entry; the related terms lead onwards.