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PLATE 14 OF 20

Standards, specifications and notified bodies.

Harmonised standards, common specifications, and the role of notified bodies.

PILLAR Harmonised standards, overviewGUIDES 9REVIEWED 27 October 2026

Pillar guide

Harmonised standards, overview: What a harmonised standard is, what presumption it gives, and what it does not prove about a machine.

Supporting guides

GuideWhat it covers
Presumption of conformityHow presumption works, when it is lost, and why a presumption is not a conformity finding.
Common specificationsSpecifications adopted where harmonised standards are absent or insufficient, and how they are used in assessment.
Checking standards coverageA per requirement coverage check, so a standard is not listed for requirements it does not address.
Notified bodies, role and limitsWhat a notified body does in each route, and what it does not do for the manufacturer.
Selecting a notified bodyScope, procedure, product type, and timing checked before engagement, and recorded in the file.
Withdrawn and superseded standardsWhat happens when a standard reference is withdrawn or superseded, and how a file responds.
Using several standards togetherHow multiple standards combine to cover requirements, and where overlaps and gaps hide.
Standards versus the law itselfThe legal text governs, standards support it, and a conflict is resolved in favour of the text.

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