ETIAS Reference

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Data categories

EU legal texts for large-scale information systems typically define categories of data that may be processed. Public summaries may refer to identity data, travel document data, contact data, and other categories defined in law.

How to read data category discussions

  • Look for definitions provided in the relevant EU legal act.
  • Separate category names from examples and legal conditions.
  • Consult oversight bodies and official guidance for privacy context.

Primary references are listed on the Sources page, including EU law and EU data protection sources.

Last updated: 2026-01-17