{
  "summary": "In the United States tariff, line 8483.40.30.80 covers gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters, gear boxes and other speed changers, fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation, imported for use with machines for making cellulosic pulp, paper or paperboard. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8483.40 in heading 84.83 (chapter 84).",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "Tariff line",
      "value": "8483.40.30.80",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Covers",
      "value": "Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters, gear boxes and other speed changers, fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation, imported for use with machines for making cellulosic pulp, paper or paperboard",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Additional duties",
      "value": "None recorded",
      "source": null
    },
    {
      "label": "Restrictions",
      "value": "None recorded",
      "source": null
    },
    {
      "label": "Tariff",
      "value": "United States",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false",
      "url": "https://border.bot/countries/united-states"
    },
    {
      "label": "HS subheading",
      "value": "8483.40",
      "source": null,
      "url": "https://border.bot/hs-codes/848340"
    }
  ],
  "faq": [
    {
      "question": "What does tariff line 8483.40.30.80 cover in the United States tariff?",
      "answer": "In the United States tariff, line 8483.40.30.80 covers gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters, gear boxes and other speed changers, fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation, imported for use with machines for making cellulosic pulp, paper or paperboard."
    },
    {
      "question": "What is the general (MFN) duty on 8483.40.30.80 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty. The rate is published on 8483.40.30."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 8483.40.30.80 covers gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters, gear boxes and other speed changers, fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation, imported for use with machines for making cellulosic pulp, paper or paperboard.",
        "Its legal text is “Other”, read under “Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters”, “Gear boxes and other speed changers”, “Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation” and “Imported for use with machines for making cellulosic pulp, paper or paperboard”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 8483.40 in heading 84.83 (chapter 84). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff."
      ]
    },
    {
      "id": "duty",
      "title": "Duty",
      "text": [
        "Goods under this line enter free of general (MFN) duty.",
        "The rate is published on 8483.40.30."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 8483.40 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."
      ]
    }
  ],
  "data": {
    "type": "country-line",
    "country": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
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    "schedule": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
    },
    "borrowed": false,
    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
    "provenance": [
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        "dataset": "US:hs",
        "country": "US",
        "kind": "hs",
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        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:50.043Z",
        "origin": "source",
        "sourceUrls": [
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        "kind": "rates",
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        "liveAt": "2026-10-09T21:15:36.287Z",
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      {
        "dataset": "US:programmes",
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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": "8483",
      "description": "Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof"
    },
    "subheading": {
      "code": "848340",
      "description": "Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements presented separately; ball or roller screws; gear boxes and other speed changers, including torque converters"
    },
    "line": {
      "code": "8483403080",
      "description": "Other",
      "levels": [
        "Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters",
        "Gear boxes and other speed changers",
        "Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation",
        "Imported for use with machines for making cellulosic pulp, paper or paperboard",
        "Other"
      ],
      "english": null,
      "keywords": [],
      "lang": "en",
      "general": {
        "code": "84834030",
        "dutyText": "Free",
        "startDate": null,
        "endDate": null,
        "unit": null
      },
      "preferences": [],
      "measures": [],
      "restrictions": []
    },
    "siblings": [
      {
        "code": "8483401000",
        "description": "Torque converters"
      },
      {
        "code": "8483403040",
        "description": "Fixed ratio speed changers"
      },
      {
        "code": "8483405010",
        "description": "Fixed ratio speed changers"
      },
      {
        "code": "8483405020",
        "description": "Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter"
      },
      {
        "code": "8483405080",
        "description": "Other"
      },
      {
        "code": "8483407000",
        "description": "Other speed changers"
      },
      {
        "code": "8483408000",
        "description": "Ball or roller screws"
      },
      {
        "code": "8483409000",
        "description": "Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately"
      }
    ],
    "siblingsTotal": 8,
    "previous": {
      "code": "8483403040",
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      "indexable": true
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      "code": "8483405010",
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  "code": "8483403080",
  "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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