{
  "summary": "The United States tariff splits HS 3103.90 (mineral or chemical fertilizers, phosphatic) into 1 national line: 3103.90.01.00 (other). Every United States line under 3103.90 is free of general (MFN) duty.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "HS subheading",
      "value": "3103.90",
      "source": null,
      "url": "https://border.bot/hs-codes/310390"
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    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
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      "value": "1",
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      "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": "Chapter",
      "value": "31: Fertilisers",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 3103.90?",
      "answer": "The United States tariff splits HS 3103.90 (mineral or chemical fertilizers, phosphatic) into 1 national line: 3103.90.01.00 (other)."
    },
    {
      "question": "What is the duty on HS 3103.90 in the United States?",
      "answer": "Every United States line under 3103.90 is free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 3103.90",
      "text": [
        "The United States tariff splits HS 3103.90 (mineral or chemical fertilizers, phosphatic) into 1 national line: 3103.90.01.00 (other).",
        "Every United States line under 3103.90 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 3103.90 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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    "type": "country-subheading",
    "country": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
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      "name": "United States",
      "slug": "united-states"
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    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
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        "liveAt": "2026-10-09T21:15:36.287Z",
        "origin": "source",
        "sourceUrls": [
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      {
        "dataset": "US:programmes",
        "country": "US",
        "kind": "programmes",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:58.040Z",
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        "sourceUrls": [
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "31",
      "description": "Fertilisers"
    },
    "heading": {
      "code": "3103",
      "description": "Mineral or chemical fertilizers, phosphatic"
    },
    "subheading": {
      "code": "310390",
      "description": "Other"
    },
    "lines": [
      {
        "code": "3103900100",
        "description": "Other",
        "levels": [
          "Other"
        ],
        "english": null,
        "keywords": [],
        "lang": "en",
        "general": {
          "code": "3103900100",
          "dutyText": "Free",
          "startDate": null,
          "endDate": null,
          "unit": null
        },
        "preferences": [],
        "measures": [],
        "restrictions": []
      }
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    "previous": {
      "code": "310319",
      "description": "Mineral or chemical fertilizers, phosphatic",
      "indexable": false
    },
    "next": {
      "code": "310420",
      "description": "Mineral or chemical fertilizers, potassic",
      "indexable": true
    },
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      "robots": "noindex",
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      "reasons": [
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    "page": 1,
    "pages": 1,
    "size": 100,
    "total": 1,
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  "previous": null,
  "next": "https://border.bot/countries/united-states/hs-codes/310420",
  "links": {
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    "html": "https://border.bot/countries/united-states/hs-codes/310390",
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  "code": "310390",
  "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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}