{
  "summary": "In the United States tariff, line 3909.50.10.00 covers polyurethanes, elastomeric. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 3909.50 in heading 39.09 (chapter 39).",
  "updatedAt": "2026-10-09",
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      "value": "3909.50.10.00",
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      "label": "Covers",
      "value": "Polyurethanes, elastomeric",
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      "label": "Additional duties",
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      "question": "What does tariff line 3909.50.10.00 cover in the United States tariff?",
      "answer": "In the United States tariff, line 3909.50.10.00 covers polyurethanes, elastomeric."
    },
    {
      "question": "What is the general (MFN) duty on 3909.50.10.00 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 3909.50.10.00 covers polyurethanes, elastomeric.",
        "Its legal text is “Elastomeric”, read under “Polyurethanes”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 3909.50 in heading 39.09 (chapter 39). 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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      "title": "Duty",
      "text": [
        "Goods under this line enter free of general (MFN) duty."
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        "No other national tariff on border.bot has live lines under 3909.50 yet."
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      "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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    "chapter": {
      "code": "39",
      "description": "Plastics and articles thereof"
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    "heading": {
      "code": "3909",
      "description": "Amino-resins, phenolic resins and polyurethanes, in primary forms"
    },
    "subheading": {
      "code": "390950",
      "description": "Polyurethanes"
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    "line": {
      "code": "3909501000",
      "description": "Elastomeric",
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        "code": "3909502000",
        "description": "Cements"
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      "description": "Phenolic resins",
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  "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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