{
  "summary": "The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other). Every United States line under 8455.90 is free of general (MFN) duty.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "HS subheading",
      "value": "8455.90",
      "source": null,
      "url": "https://border.bot/hs-codes/845590"
    },
    {
      "label": "Duty (MFN)",
      "value": "Free",
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    },
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      "value": "2",
      "source": null
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    {
      "label": "Chapter",
      "value": "84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 8455.90?",
      "answer": "The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other)."
    },
    {
      "question": "What is the duty on HS 8455.90 in the United States?",
      "answer": "Every United States line under 8455.90 is free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 8455.90",
      "text": [
        "The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other).",
        "Every United States line under 8455.90 is free of general (MFN) duty."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 8455.90 yet."
      ]
    },
    {
      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "This page was last updated on 9 October 2026.",
        "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling."
      ]
    }
  ],
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      "code": "US",
      "name": "United States",
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      "code": "US",
      "name": "United States",
      "slug": "united-states"
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    "borrowed": false,
    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
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        "liveAt": "2026-10-09T21:15:36.287Z",
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "84",
      "description": "Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof"
    },
    "heading": {
      "code": "8455",
      "description": "Metal-rolling mills and rolls therefor; parts thereof"
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      "code": "845590",
      "description": "Other parts"
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        "code": "8455904000",
        "description": "Castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455",
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        "general": {
          "code": "8455904000",
          "dutyText": "Free",
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          "endDate": null,
          "unit": null
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        "measures": [],
        "restrictions": []
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          "Other"
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        "general": {
          "code": "8455908000",
          "dutyText": "Free",
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          "unit": null
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        "measures": [],
        "restrictions": []
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      "description": "Metal-rolling mills and rolls therefor; parts thereof",
      "indexable": true
    },
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      "code": "845611",
      "description": "Operated by laser",
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  "code": "845590",
  "attribution": "border.bot tariff reference (border.bot), compiled from the official publishers named on each page.",
  "terms": "https://border.bot/legal/terms",
  "notice": "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.",
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