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UGP v1.0 is a public comment draft. Comments close November 23, 2026. The A–D defect counts are provisional.Public comment draft · until November 23, 2026Comment on this draftComment →
UGPUniversal Grading Protocol
ConformanceNormative§15

Mapping to other systems

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How UGP maps to CTIA, R2 and marketplace condition names, without claiming equivalence.

Annex D maps UGP grades to CTIA v5.1, R2, and the condition names used by major marketplaces. The mapping is informative.

  • UGP maps to these systems. It does not claim equivalence, endorsement or certification by any of them.
  • Where UGP is stricter or looser than a mapped system, Annex D says so.
  • A party exporting a derived CTIA vector shall label it derived from UGP v1.0.