{
  "summary": "In the United States tariff, line 9020.00.40.00 covers underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 9020.00 in heading 90.20 (chapter 90).",
  "updatedAt": "2026-10-09",
  "facts": [
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      "label": "Tariff line",
      "value": "9020.00.40.00",
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    },
    {
      "label": "Covers",
      "value": "Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants",
      "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
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    {
      "label": "Tariff",
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    {
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      "value": "9020.00",
      "source": null,
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  "faq": [
    {
      "question": "What does tariff line 9020.00.40.00 cover in the United States tariff?",
      "answer": "In the United States tariff, line 9020.00.40.00 covers underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants."
    },
    {
      "question": "What is the general (MFN) duty on 9020.00.40.00 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 9020.00.40.00 covers underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants.",
        "Its legal text is “Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 9020.00 in heading 90.20 (chapter 90). 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."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 9020.00 yet."
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    },
    {
      "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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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "90",
      "description": "Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof"
    },
    "heading": {
      "code": "9020",
      "description": "Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters"
    },
    "subheading": {
      "code": "902000",
      "description": "Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters"
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      "code": "9020004000",
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      "general": {
        "code": "9020004000",
        "dutyText": "Free",
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        "description": "Other breathing appliances and gas masks"
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      "description": "Ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof",
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  "code": "9020004000",
  "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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