{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/sic/3731/",
  "identifier": "3731",
  "name": "Ship Building and Repairing",
  "description": "Standard Industrial Classification (SIC) code 3731: Ship Building and Repairing.",
  "url": "https://entitycodes.org/sic/3731/",
  "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 D: Manufacturing"
    },
    {
      "@type": "PropertyValue",
      "name": "SIC major group",
      "value": "Major Group 37: Transportation Equipment"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "NAICS 2022",
      "code": "336611",
      "title": "Ship Building and Repairing",
      "confidence": "chain",
      "via": "SIC1987:3731\u2192NAICS1997:336611\u21922002:336611\u21922007:336611\u21922012:336611\u21922017:336611\u21922022:336611",
      "url": "https://entitycodes.org/naics/336611/"
    },
    {
      "system": "NAICS 2022",
      "code": "488390",
      "title": "Other Support Activities for Water Transportation",
      "confidence": "chain",
      "via": "SIC1987:3731\u2192NAICS1997:48839\u21922002:488390\u21922007:488390\u21922012:488390\u21922017:488390\u21922022:488390",
      "url": "https://entitycodes.org/naics/488390/"
    }
  ],
  "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 37: Transportation Equipment",
    "name": "SIC Major Group Major Group 37: Transportation Equipment",
    "@id": "https://entitycodes.org/sic/group/Major Group 37: Transportation Equipment/"
  }
}