[
  {
    "code": "31-33",
    "title": "Manufacturing",
    "level": 2,
    "parent": null,
    "summary": "Mechanical, physical, or chemical transformation of materials, substances, or components into new products."
  },
  {
    "code": "331315",
    "title": "Aluminum Sheet, Plate, and Foil Manufacturing",
    "level": 6,
    "parent": "33131",
    "summary": "Aerospace-relevant aluminum production and processing."
  },
  {
    "code": "332710",
    "title": "Machine Shops",
    "level": 6,
    "parent": "33271",
    "summary": "Precision machining and component production used throughout aerospace supply chains."
  },
  {
    "code": "333611",
    "title": "Turbine and Turbine Generator Set Units Manufacturing",
    "level": 6,
    "parent": "33361",
    "summary": "Adjacent turbine equipment manufacturing category relevant to turbine component ecosystems."
  },
  {
    "code": "334511",
    "title": "Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing",
    "level": 6,
    "parent": "33451",
    "summary": "Avionics, navigation, guidance, aeronautical instruments and adjacent control systems."
  },
  {
    "code": "336",
    "title": "Transportation Equipment Manufacturing",
    "level": 3,
    "parent": "31-33",
    "summary": "Manufacturing transportation equipment including aircraft, motor vehicles, ships and related equipment."
  },
  {
    "code": "3364",
    "title": "Aerospace Product and Parts Manufacturing",
    "level": 4,
    "parent": "336",
    "summary": "Industry group for aircraft, aircraft engines, aircraft parts, guided missiles, space vehicles and related auxiliary equipment."
  },
  {
    "code": "33641",
    "title": "Aerospace Product and Parts Manufacturing",
    "level": 5,
    "parent": "3364",
    "summary": "Core NAICS industry backbone for Kentucky aerospace product and parts exports."
  },
  {
    "code": "336411",
    "title": "Aircraft Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Complete aircraft and major aircraft manufacturing."
  },
  {
    "code": "336412",
    "title": "Aircraft Engine and Engine Parts Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Aircraft engines, engine parts, turbine sections, propulsion hardware and related manufacturing."
  },
  {
    "code": "336413",
    "title": "Other Aircraft Parts and Auxiliary Equipment Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Aircraft parts, auxiliary equipment, braking systems, landing systems, control-adjacent components and related assemblies."
  },
  {
    "code": "336414",
    "title": "Guided Missile and Space Vehicle Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Guided missiles, space vehicles and related complete systems."
  },
  {
    "code": "336415",
    "title": "Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Propulsion units and propulsion-unit parts for missile and space vehicle systems."
  },
  {
    "code": "336419",
    "title": "Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing",
    "level": 6,
    "parent": "33641",
    "summary": "Non-propulsion parts and auxiliary equipment for guided missile and space vehicle systems."
  },
  {
    "code": "326150",
    "title": "Urethane and Other Foam Product Manufacturing",
    "level": 6,
    "parent": "32615",
    "summary": "Advanced foam and polymer material manufacturing with aerospace-relevant applications."
  },
  {
    "code": "326199",
    "title": "All Other Plastics Product Manufacturing",
    "level": 6,
    "parent": "32619",
    "summary": "Adjacent plastics and composite-adjacent manufacturing category for specialized parts and structures."
  },
  {
    "code": "481112",
    "title": "Scheduled Freight Air Transportation",
    "level": 6,
    "parent": "48111",
    "summary": "Air cargo movement layer that supports aerospace component distribution and export logistics."
  },
  {
    "code": "488190",
    "title": "Other Support Activities for Air Transportation",
    "level": 6,
    "parent": "48819",
    "summary": "Airport and air transportation support activity relevant to MRO and airfield operations."
  },
  {
    "code": "541330",
    "title": "Engineering Services",
    "level": 6,
    "parent": "54133",
    "summary": "Engineering service activity relevant to aerospace design, integration, field service and systems support."
  },
  {
    "code": "541715",
    "title": "Research and Development in the Physical, Engineering, and Life Sciences",
    "level": 6,
    "parent": "54171",
    "summary": "R&D activity relevant to space research, advanced materials, biotechnology in orbit and engineering innovation."
  }
]