{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/sic/4939/",
  "identifier": "4939",
  "name": "Combination Utilities, NEC",
  "description": "Standard Industrial Classification (SIC) code 4939: Combination Utilities, NEC.",
  "url": "https://entitycodes.org/sic/4939/",
  "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 49: Electric, Gas, and Sanitary Services"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "NAICS 2022",
      "code": "221210",
      "title": "Natural Gas Distribution",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:22121\u21922002:221210\u21922007:221210\u21922012:221210\u21922017:221210\u21922022:221210",
      "url": "https://entitycodes.org/naics/221210/"
    },
    {
      "system": "NAICS 2022",
      "code": "221112",
      "title": "Fossil Fuel Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221112\u21922002:221112\u21922007:221112\u21922012:221112\u21922017:221112\u21922022:221112",
      "url": "https://entitycodes.org/naics/221112/"
    },
    {
      "system": "NAICS 2022",
      "code": "221113",
      "title": "Nuclear Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221113\u21922002:221113\u21922007:221113\u21922012:221113\u21922017:221113\u21922022:221113",
      "url": "https://entitycodes.org/naics/221113/"
    },
    {
      "system": "NAICS 2022",
      "code": "221111",
      "title": "Hydroelectric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221111\u21922002:221111\u21922007:221111\u21922012:221111\u21922017:221111\u21922022:221111",
      "url": "https://entitycodes.org/naics/221111/"
    },
    {
      "system": "NAICS 2022",
      "code": "221117",
      "title": "Biomass Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221119\u21922002:221119\u21922007:221119\u21922012:221117\u21922017:221117\u21922022:221117",
      "url": "https://entitycodes.org/naics/221117/"
    },
    {
      "system": "NAICS 2022",
      "code": "221118",
      "title": "Other Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221119\u21922002:221119\u21922007:221119\u21922012:221118\u21922017:221118\u21922022:221118",
      "url": "https://entitycodes.org/naics/221118/"
    },
    {
      "system": "NAICS 2022",
      "code": "221116",
      "title": "Geothermal Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221119\u21922002:221119\u21922007:221119\u21922012:221116\u21922017:221116\u21922022:221116",
      "url": "https://entitycodes.org/naics/221116/"
    },
    {
      "system": "NAICS 2022",
      "code": "221114",
      "title": "Solar Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221119\u21922002:221119\u21922007:221119\u21922012:221114\u21922017:221114\u21922022:221114",
      "url": "https://entitycodes.org/naics/221114/"
    },
    {
      "system": "NAICS 2022",
      "code": "221115",
      "title": "Wind Electric Power Generation",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221119\u21922002:221119\u21922007:221119\u21922012:221115\u21922017:221115\u21922022:221115",
      "url": "https://entitycodes.org/naics/221115/"
    },
    {
      "system": "NAICS 2022",
      "code": "221122",
      "title": "Electric Power Distribution",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221122\u21922002:221122\u21922007:221122\u21922012:221122\u21922017:221122\u21922022:221122",
      "url": "https://entitycodes.org/naics/221122/"
    },
    {
      "system": "NAICS 2022",
      "code": "221121",
      "title": "Electric Bulk Power Transmission and Control",
      "confidence": "chain",
      "via": "SIC1987:4939\u2192NAICS1997:221121\u21922002:221121\u21922007:221121\u21922012:221121\u21922017:221121\u21922022:221121",
      "url": "https://entitycodes.org/naics/221121/"
    }
  ],
  "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 49: Electric, Gas, and Sanitary Services",
    "name": "SIC Major Group Major Group 49: Electric, Gas, and Sanitary Services",
    "@id": "https://entitycodes.org/sic/group/Major Group 49: Electric, Gas, and Sanitary Services/"
  }
}