REGIME RESEARCH REVIEW / 2026-10-16 Question and decision owner: State definition and units: Observation period / source release / ingestion / decision cutoff: Feature transformation and fitted-parameter cutoff: Vintage and classification versions: Missing, late, withdrawn and stale data rules: Threshold and abstention policy: Retrospective versus available-at-time comparison: Conditional evaluation sample / benchmark / costs: Unresolved limitations and required evidence: