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certification_region · Emissions & fuel economy

EPA certification region: "Federal" or "California + CAA Section 177 states".

type
text
applies to
all variants
filled
2%
sources
1

Meaning

EPA certification region: "Federal" or "California + CAA Section 177 states".

Export shape

apex fieldjson
{
  "certification_region": "example",
  "_provenance": {
    "certification_region": {
      "source": "manual",
      "source_record_url": "https://apex-db.org/docs/sources#manual",
      "effective": true
    }
  }
}

Provenance

Apex stores source-qualified provenance for exported values. Buyer snapshots and API responses include the upstream source record where redistribution rights allow it, so a downstream model can cite the original regulator or manufacturer feed.

Field-level fill rates are measured across the current variant snapshot. Sparse fields are still documented because they can be important for regulatory, EV, safety, or emissions workflows.

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