Back to Error DirectoryEuropean Accessibility Act (EU Enforcement)
EAA-HAZARD-MISSINGRetailer Warning

Missing schema:accessibilityHazard Declaration

No accessibility hazard metadata declared (e.g., flashing, sound).

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Fix all EAA-HAZARD-MISSING errors in your EPUB automatically

PreFlight automatically injects verified 'noFlashingHazard', 'noSoundHazard', and 'noMotionSimulationHazard' tags into content.opf.

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What This Error Means in Plain English

Publishers must declare whether an eBook contains seizure or sensory hazards (such as flashing animations, loud unexpected sounds, or motion simulation). For standard text books, 'noFlashingHazard' must be explicitly declared.

Why Retailers & EAA Regulations Block This File

Failure to declare hazard status prevents accessibility filter sorting on retailer platforms.

Technical Specification: EPUB Accessibility 1.1 requires schema:accessibilityHazard with values 'noFlashingHazard', 'noSoundHazard', and 'noMotionSimulationHazard' for standard publications.

Manual Fix Instructions (for Sigil / Calibre)

  1. Add <meta property="schema:accessibilityHazard">none</meta> or specific no-hazard declarations in content.opf metadata.