{
  "summary": "In the United States tariff, line 3102.90.01.00 covers other, including mixtures not specified in the foregoing subheadings. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 3102.90 in heading 31.02 (chapter 31).",
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      "answer": "In the United States tariff, line 3102.90.01.00 covers other, including mixtures not specified in the foregoing subheadings."
    },
    {
      "question": "What is the general (MFN) duty on 3102.90.01.00 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty."
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      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 3102.90.01.00 covers other, including mixtures not specified in the foregoing subheadings.",
        "Its legal text is “Other, including mixtures not specified in the foregoing subheadings”."
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    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 3102.90 in heading 31.02 (chapter 31). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff."
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        "No other national tariff on border.bot has live lines under 3102.90 yet."
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        "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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    "chapter": {
      "code": "31",
      "description": "Fertilisers"
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    "heading": {
      "code": "3102",
      "description": "Mineral or chemical fertilizers, nitrogenous"
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    "subheading": {
      "code": "310290",
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      "description": "Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution",
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      "description": "Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5)",
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