evap_standard_code · Emissions & fuel economy
EPA Annual Cert: evaporative emission standard, e.g. "Federal Tier 3 Evap", "California LEV-III Zero Evap (Option 2)".
type
text
applies to
all variants
filled
2%
sources
1
Meaning
EPA Annual Cert: evaporative emission standard, e.g. "Federal Tier 3 Evap", "California LEV-III Zero Evap (Option 2)".
Export shape
apex fieldjson
{
"evap_standard_code": "example",
"_provenance": {
"evap_standard_code": {
"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.