Understanding the EU AI Act: Requirements for High-Risk AI Systems

The EU AI Act's Risk Tiering: Where Does Your Product Sit?

The EU AI Act establishes four risk categories for AI systems. Unacceptable risk systems are banned outright — this includes social scoring by governments and real-time biometric surveillance in public spaces. High-risk systems face the heaviest compliance requirements. Limited risk systems carry transparency obligations. Minimal risk systems are largely unregulated.

What Qualifies as High-Risk

High-risk classification applies to AI systems used as safety components of regulated products, and to eight specific application areas listed in Annex III. These include AI used in recruitment and HR decisions, credit scoring, educational access, essential services, law enforcement, migration and border control, and administration of justice.

Conformity Assessments and Technical Documentation

Before placing a high-risk AI system on the EU market, providers must complete a conformity assessment. Your technical documentation must cover the system's intended purpose, development methodology, training data, validation results, performance metrics, and known limitations.

• Maintain version-controlled model cards for every model in production
• Document training datasets including sources, curation methods, and known biases
• Record accuracy, robustness, and cybersecurity metrics against defined benchmarks
• Store all documentation for 10 years post-market placement

Data Governance Requirements

Training, validation, and testing datasets must be relevant, representative, free of errors, and complete for the intended purpose. You must demonstrate that your datasets do not introduce or amplify discriminatory outcomes. Bias audits are a compliance requirement, not optional.

Human Oversight and Transparency Obligations

High-risk systems must be designed to allow effective human oversight — enabling humans to understand, monitor, and override AI outputs. The system must display appropriate output confidence indicators and flag anomalies. Users must know they are interacting with an AI-driven system.

Compliance Timelines

The EU AI Act entered into force in August 2024. Prohibited practices became enforceable in February 2025. High-risk system requirements under Annex III apply from August 2026. General-purpose AI model obligations apply from August 2025. Start your conformity assessment, technical documentation, and human oversight design now.