Notified body

A conformity assessment body designated by a Member State under Chapter IV of the Act to perform third-party conformity assessment of high-risk AI systems where self-assessment is not permitted. The notifying authority is responsible for designating and monitoring notified bodies; the market surveillance authority is responsible for enforcing compliance of providers and deployers in the market. These are related but distinct functions that may sit in the same or different national bodies.

An independent conformity assessment body designated by an EU member state to review certain high-risk AI systems' technical documentation before market placement, under the conformity assessment routes set out across Articles 43 to 47 of the Act. Some high-risk categories require notified body review; others rely on provider self-assessment with the file held ready for market surveillance review.

An organization accredited by an EU member state to carry out third-party conformity assessment of certain high-risk AI systems under the EU AI Act; a review mechanism with no direct equivalent in China's self-assessment-based algorithm filing regime or in current US federal or state AI requirements, most of which impose no mandated third-party testing requirement.

An independent, accredited organization designated to carry out conformity assessment under Annex VII. It reads and examines the provider's file and quality management system before certain high-risk systems, notably biometric ones, may be placed on the market.

An independent organization designated to assess whether a high-risk AI system conforms to the EU AI Act's requirements. Their limited availability was part of the reason the high-risk deadline was postponed.