Article 73 reporting guide

EU AI Act Article 73 Serious Incident Reporting

Article 73 serious incident reporting is a provider-led reporting obligation for high-risk AI systems. Teams need a fast evidence handoff because the regulation includes different reporting windows depending on incident severity.

What this page gives you

Timeline map
A practical map of 15-day, 10-day, and 2-day reporting windows described in Article 73.
Evidence intake
Fields to capture before a legal or conformity reviewer assesses reportability.
Coordination model
How deployers, providers, vendors, legal, and incident teams should hand off facts.

Article 73 timing map

Article 73 requires reporting after the provider has established a causal link, or reasonable likelihood of a causal link, between the high-risk AI system and the serious incident. The table below is an operational triage map, not a legal conclusion.

SituationArticle 73 timing signalOperational action
Standard serious incident pathReport without undue delay and in any event not later than 15 days after awareness.Open incident record, preserve evidence, start causal-link review.
Widespread infringement or certain serious incidentsReport immediately and not later than 2 days after awareness.Escalate to legal, provider, leadership, and reporting owner immediately.
Death of a personReport immediately after causal relationship is established or suspected, and not later than 10 days after awareness.Activate executive, legal, provider, and authority-contact workflow.
Incomplete informationArticle 73 allows an initial incomplete report where necessary, followed by a complete report.Submit facts known, track missing facts, preserve a completion deadline.

Article 73 reporting checklist

Markdown checklist for intake, timing, causal-link review, evidence, escalation, and closure.

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Who needs this guide

This guide is for providers of high-risk AI systems, deployers who may first detect a serious incident, compliance officers, incident response teams, product owners, legal teams, and vendor managers. It is especially useful where a deployer relies on a third-party AI provider and needs a fast evidence handoff.

Facts to capture before deciding reportability

Recommended workflow

  1. Record the incident in the Serious Incident Register Lite.
  2. Activate the AI Incident Response Plan.
  3. Notify the provider or deployer counterparty as required by contract and incident process.
  4. Preserve evidence before altering the system in a way that could affect later evaluation.
  5. Route the record to qualified legal, compliance, and conformity-assessment review.
  6. Feed confirmed lessons into the Post-Market Monitoring Plan.

FAQ

Who reports under Article 73?

Article 73 is framed around providers of high-risk AI systems placed on the Union market reporting serious incidents to the relevant market surveillance authorities. Deployers may become aware first, so contracts and internal processes should define handoff duties.

Does every AI incident trigger Article 73?

No. Article 73 concerns serious incidents involving high-risk AI systems. Internal triage should separate ordinary defects, security events, complaints, and suspected serious incidents before qualified review.

Can an initial report be incomplete?

Article 73 allows an initial incomplete report where necessary to ensure timely reporting, followed by a complete report. Teams should track missing facts and assign an owner for completion.

Source and review note

This page is educational. Review any legal, conformity, reporting, or sector-specific decision against Regulation (EU) 2024/1689, European Commission materials, national authority guidance, sector legislation, and qualified legal or conformity-assessment advice where relevant. EU AI Compass does not provide legal advice or certify compliance.