// THE FOUR ANNEX A CONTROL DOMAINS
38 AI controls. Four operational domains. One AI Impact Assessment at the center.
ISO 42001's Annex A organizes 38 AI-specific controls across 9 control areas, which group into four operational domains. The AI System Lifecycle + Risk domain is the substantive core — the AI Impact Assessment, the lifecycle management requirements, and the AI-specific risk treatment that justify the standard's existence as separate from ISO 27001. The other three domains (organizational context, resources and data, operations and improvement) provide the management system foundation the AI-specific work sits on.
Every certification audit reads the Statement of Applicability first — the document declaring which Annex A controls apply to your AIMS and how they're implemented. The AI Impact Assessment (Annex A 8.5) is the artifact the Stage 2 auditor will examine most closely — it's where the standard's responsible AI principles meet the organization's actual AI system inventory.
// DOMAIN 01 // A.4 + A.5 + A.6
Organizational Context & Leadership
Policies related to AI, internal organization, and AI roles and responsibilities. The governance scaffolding the AIMS sits on — AI policy committed by top management, defined roles for AI development and oversight, and the organizational context for how AI fits into the broader risk landscape.
Failure mode: AI policy that exists on paper but doesn't connect to actual AI development practices. The Stage 2 auditor tests whether leadership commitment is operational, not whether the policy was published.
Annex A: A.5 (Policies), A.6 (Internal Org)
ISO 27001 carry: ~70% structural
// DOMAIN 02 // A.6.2 + A.8 SUBSTANTIVE CORE
AI System Lifecycle & Risk
The substantive core of the standard. AI Impact Assessment (A.8.5), AI system lifecycle management (A.6.2), AI risk treatment, and the responsible AI principles that justify the standard's existence as separate from ISO 27001 — bias, explainability, autonomy, human oversight, model drift, fundamental rights.
Failure mode: running AI risk through the security risk register without a dedicated AI Impact Assessment. The Stage 2 auditor reads the AI Impact Assessment most closely.
Annex A: A.6.2 (Lifecycle), A.8 (Impact)
ISO 27001 carry: Net-new
EU AI Act: Direct bridge
// DOMAIN 03 // A.7 + A.9
Resources & Data Governance
Resources for AI systems (A.7) including computational, data, human, and supplier resources. Data for AI systems (A.9) including data quality, lineage, training data governance, data preparation, and ongoing data management across the AI lifecycle.
Failure mode: data quality for AI training treated identically to data quality for analytics. AI training data requires explicit lineage, representativeness assessment, and bias evaluation that traditional data governance doesn't capture.
Annex A: A.7 (Resources), A.9 (Data)
ISO 27001 carry: ~40% partial
// DOMAIN 04 // A.10 + A.11 + A.12
Operations & Improvement
Information for interested parties of AI systems (A.10), use of AI systems (A.11), and third-party and customer relationships (A.12). The downstream operational dimensions: transparency to data subjects and decision recipients, responsible use guidance, and supply chain management for AI components.
Failure mode: assuming the AI system's existence is sufficient disclosure. A.10 requires structured information for stakeholders that enables them to understand, challenge, and respond to AI-driven outcomes.
Annex A: A.10, A.11, A.12
ISO 27001 carry: ~30% partial