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AI Act (EU)

By Updated

Regulation (EU) 2024/1689, the EU's horizontal, risk-tiered law for AI, amended by the Digital Omnibus 1. It classifies systems by risk (prohibited, high-risk, limited, minimal) and imposes obligations accordingly.

Developed in
ch. 18, The Act and the Omnibus
Chapters
ch. 08, Regulatory Map · ch. 18, EU AI Act
Compared side by side
ISO 42001 vs EU AI Act · NIST AI RMF vs EU AI Act
Source
1 numbered reference, listed below

Where it is used

23 chapters of the Body of Knowledge use the term. Each link opens the first section that does.

AI Act (EU): mentions per chapter259 mentions of the term across 23 of the 23 chapters of the Body of Knowledge; the chapters the glossary cross-references are drawn solid.Cross-referenced chapterOther chapter00 Preface: 6 mentions00 Preface601 Definition: 2 mentions01 Definition202 Why Now: 3 mentions02 Why Now303 Values & Principles: 1 mention03 Values & Principles104 The Stack: 12 mentions04 The Stack1205 Patterns: 3 mentions05 Patterns306 The Role: 10 mentions06 The Role1007 Maturity Model: 2 mentions07 Maturity Model208 Regulatory Map: 22 mentions08 Regulatory Map2210 Reading List: 5 mentions10 Reading List511 AI Defined: 21 mentions11 AI Defined2112 Governance Program: 10 mentions12 Governance Program1013 Risk Management: 13 mentions13 Risk Management1314 Development: 11 mentions14 Development1115 Deployment: 9 mentions15 Deployment916 Fairness & XAI: 13 mentions16 Fairness & XAI1317 Incidents: 15 mentions17 Incidents1518 EU AI Act: 10 mentions18 EU AI Act1019 Privacy & AI: 23 mentions19 Privacy & AI2320 Existing Law: 17 mentions20 Existing Law1721 AI Laws Worldwide: 20 mentions21 AI Laws Worldwide2022 Principles & Standards: 25 mentions22 Principles & Standards2523 AI Agents: 6 mentions23 AI Agents6Source: the Body of Knowledgev0.5.0
AI Act (EU): mentions per chapter259 mentions of the term across 23 of the 23 chapters of the Body of Knowledge; the chapters the glossary cross-references are drawn solid.Cross-referenced chapterOther chapter00 Preface: 6 mentions60001 Definition: 2 mentions20102 Why Now: 3 mentions30203 Values & Principles: 1 mention10304 The Stack: 12 mentions120405 Patterns: 3 mentions30506 The Role: 10 mentions100607 Maturity Model: 2 mentions20708 Regulatory Map: 22 mentions220810 Reading List: 5 mentions51011 AI Defined: 21 mentions211112 Governance Program: 10 mentions101213 Risk Management: 13 mentions131314 Development: 11 mentions111415 Deployment: 9 mentions91516 Fairness & XAI: 13 mentions131617 Incidents: 15 mentions151718 EU AI Act: 10 mentions101819 Privacy & AI: 23 mentions231920 Existing Law: 17 mentions172021 AI Laws Worldwide: 20 mentions202122 Principles & Standards: 25 mentions252223 AI Agents: 6 mentions623Source: the Body of Knowledge v0.5.0
Mentions per chapter How often each chapter names the term, with the chapters the glossary cross-references drawn solid. The longest bar is where to read the term in use; bars spread across many chapters mark a term that runs through the discipline.
Mentions as a table
Mentions of AI Act (EU) per chapter
ChapterMentionsCross-referenced
00 Preface6No
01 Definition2No
02 Why Now3No
03 Values & Principles1No
04 The Stack12No
05 Patterns3No
06 The Role10No
07 Maturity Model2No
08 Regulatory Map22Yes
10 Reading List5No
11 AI Defined21No
12 Governance Program10No
13 Risk Management13No
14 Development11No
15 Deployment9No
16 Fairness & XAI13No
17 Incidents15No
18 EU AI Act10Yes
19 Privacy & AI23No
20 Existing Law17No
21 AI Laws Worldwide20No
22 Principles & Standards25No
23 AI Agents6No

Patterns that use this term

33 pattern pages use the term; the 10 that use it most:

AI Act (EU): related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedColour: stack layer of the pattern01 Govern-as-Code02 Inventory04 Runtime Controls05 AssuranceAI Act (EU)Related terms (8)Authorised representative · RelatedAuthorised representativeClassification decision record · RelatedClassification decision recordDigital Omnibus · RelatedDigital OmnibusEU declaration of conformity · RelatedEU declaration of conformityMarket surveillance authority · RelatedMarket surveillance authoritySmall mid-cap enterprise (SMC) · RelatedSmall mid-cap enterpriseTesting in real-world conditions · RelatedTesting in real-world conditionsTraining, validation and testing data · RelatedTrainingPatterns using it most (6)Decision Notice & Contest Path, 4 mentions · Uses the termDecision Notice & Contest PathDownstream Use Register, 4 mentions · Uses the termDownstream Use RegisterExplanation Artefact, 5 mentions · Uses the termExplanation ArtefactFRIA-as-Code, 8 mentions · Uses the termFRIA-as-CodeIncident Pipeline, 4 mentions · Uses the termIncident PipelineUse-Case Intake & Risk Tiering, 4 mentions · Uses the termUse-Case Intake & Risk Tiering
AI Act (EU): related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedColour: stack layer of the pattern01 Govern-as-Code02 Inventory04 Runtime Controls05 AssuranceRelated terms (8)Authorised representative · RelatedAuthorised representativeClassification decision record · RelatedClassification decision recordDigital Omnibus · RelatedDigital OmnibusEU declaration of conformity · RelatedEU declaration of conformityMarket surveillance authority · RelatedMarket surveillance authoritySmall mid-cap enterprise (SMC) · RelatedSmall mid-cap enterpriseTesting in real-world conditions · RelatedTesting in real-world conditionsTraining, validation and testing data · RelatedTrainingPatterns using it most (6)Decision Notice & Contest Path, 4 mentions · Uses the termDecision Notice & Contest PathDownstream Use Register, 4 mentions · Uses the termDownstream Use RegisterExplanation Artefact, 5 mentions · Uses the termExplanation ArtefactFRIA-as-Code, 8 mentions · Uses the termFRIA-as-CodeIncident Pipeline, 4 mentions · Uses the termIncident PipelineUse-Case Intake & Risk Tiering, 4 mentions · Uses the termUse-Case Intake & Risk TieringAI Act (EU)
The term's neighbourhood Terms related to this one on solid edges, terms it is often confused with on dashed edges, and the patterns that use it most in the colour of their layer. Follow a dashed edge to check the distinction before you use either term.
Neighbourhood as a table
Neighbourhood of AI Act (EU)
FamilyItemRelation
Related termsAuthorised representativeRelated
Related termsClassification decision recordRelated
Related termsDigital OmnibusRelated
Related termsEU declaration of conformityRelated
Related termsMarket surveillance authorityRelated
Related termsSmall mid-cap enterprise (SMC)Related
Related termsTesting in real-world conditionsRelated
Related termsTraining, validation and testing dataRelated
Patterns using it mostDecision Notice & Contest Path, 4 mentionsUses the term
Patterns using it mostDownstream Use Register, 4 mentionsUses the term
Patterns using it mostExplanation Artefact, 5 mentionsUses the term
Patterns using it mostFRIA-as-Code, 8 mentionsUses the term
Patterns using it mostIncident Pipeline, 4 mentionsUses the term
Patterns using it mostUse-Case Intake & Risk Tiering, 4 mentionsUses the term
  • Digital Omnibus

    The 2026 reform package amending the EU AI Act (in force 27 Jul 2026), which adjusted the high-risk timeline, added AI Office investigation powers and…

  • Small mid-cap enterprise (SMC)

    An enterprise that has outgrown the SME definition but falls within the EU small mid-cap definition.

  • Training, validation and testing data

    The three data sets the AI Act defines for high-risk systems: training data fits the model, validation data tunes it and guards against overfitting, and…

  • Testing in real-world conditions

    Under the EU AI Act, temporary testing of an AI system for its intended purpose outside a laboratory, under a plan approved by the market surveillance…

  • Classification decision record

    A versioned registry record of why a system sits on a given rung of the AI Act risk ladder: the Annex III point, any Article 6(3) condition relied on, an…

  • Market surveillance authority

    The national authority designated to enforce the AI Act for products placed on its market, with powers to investigate, demand documentation and require…

  • EU declaration of conformity

    The provider's signed statement, following AI Act Annex V, that a high-risk AI system meets the Act's requirements; drawn up after the conformity assessment…

  • Authorised representative

    Under the EU AI Act, a person established in the Union with a written mandate from a non-EU provider of a high-risk AI system or general-purpose AI model to…

Sources

  1. [1] Regulation (EU) 2024/1689 (AI Act), consolidated text as amended by Regulation (EU) 2026/1744 (Digital Omnibus on AI, in force 27 Jul 2026; definitions in Art. 3, incl. 3(1), 3(3) to 3(14), 3(14b), 3(20), 3(22), 3(23), 3(29) to 3(32), 3(49), 3(55) to 3(57), 3(60), 3(61), 3(63), 3(68); Arts. 4, 5, 6 (incl. 6(3) third subparagraph, profiling), 9, 10, 11, 13, 14, 15, 17, 22 to 27 (incl. 26(11)), 40, 41, 43, 47, 48, 50, 53 (incl. 53(1)(c)), 55, 57, 60, 72, 73, 86; Annexes I, III, IV). Publications Office of the EU (EUR-Lex). 2026-07-27. https://eur-lex.europa.eu/eli/reg/2024/1689/2026-07-27/eng (verified: primary)

Definitions of legal terms paraphrase the cited text, which governs. Dated statements are as of .

Cite this term

García Aibar, J. (2026). AI Act (EU). In AI Governance Engineering: The Thesis & Body of Knowledge (v0.5.0), Glossary. https://doi.org/10.5281/zenodo.22956197. https://aigovernanceengineer.com/glossary/ai-act-eu. CC BY 4.0

BibTeX

@misc{aige2026aiacteu,
  author  = {Jorge García Aibar},
  title   = {{AI Act (EU)}},
  note    = {Glossary, AI Governance Engineering: The Thesis \& Body of Knowledge, version 0.5.0},
  year    = {2026},
  doi     = {10.5281/zenodo.22956197},
  url     = {https://aigovernanceengineer.com/glossary/ai-act-eu}
}