{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/sic/4512/",
  "identifier": "4512",
  "name": "Air Transportation, Scheduled",
  "description": "Standard Industrial Classification (SIC) code 4512: Air Transportation, Scheduled.",
  "url": "https://entitycodes.org/sic/4512/",
  "inDefinedTermSet": {
    "@type": "DefinedTermSet",
    "name": "SIC 1987",
    "url": "https://entitycodes.org/sic/"
  },
  "sameAs": [
    "https://www.osha.gov/data/sic-manual"
  ],
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "SIC division",
      "value": "Division E: Transportation, Communications, Electric, Gas, and Sanitary Services"
    },
    {
      "@type": "PropertyValue",
      "name": "SIC major group",
      "value": "Major Group 45: Transportation by Air"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "NAICS 2022",
      "code": "481112",
      "title": "Scheduled Freight Air Transportation",
      "confidence": "chain",
      "via": "SIC1987:4512\u2192NAICS1997:481112\u21922002:481112\u21922007:481112\u21922012:481112\u21922017:481112\u21922022:481112",
      "url": "https://entitycodes.org/naics/481112/"
    },
    {
      "system": "NAICS 2022",
      "code": "481111",
      "title": "Scheduled Passenger Air Transportation",
      "confidence": "chain",
      "via": "SIC1987:4512\u2192NAICS1997:481111\u21922002:481111\u21922007:481111\u21922012:481111\u21922017:481111\u21922022:481111",
      "url": "https://entitycodes.org/naics/481111/"
    }
  ],
  "ec:provenance": {
    "definition": {
      "source": "US OSHA 1987 SIC Manual",
      "type": "US gov \u2014 public domain"
    },
    "crosswalk": {
      "source": "Census NAICS\u2194SIC concordance",
      "method": "transitive chain (NOT direct)"
    }
  },
  "license": "https://www.usa.gov/government-works",
  "dateModified": "2026-07-21",
  "isPartOf": {
    "@type": "DefinedTerm",
    "identifier": "Major Group 45: Transportation by Air",
    "name": "SIC Major Group Major Group 45: Transportation by Air",
    "@id": "https://entitycodes.org/sic/group/Major Group 45: Transportation by Air/"
  }
}