{
  "summary": "HS code 3921.13 covers cellular, of polyurethanes. It sits in heading 39.21 (other plates, sheets, film, foil and strip, of plastics) in chapter 39 (plastics and articles thereof). Other goods of heading 39.21 are classified under 3921.11 (cellular, of polymers of styrene), 3921.12 (cellular, of polymers of vinyl chloride), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other.",
  "updatedAt": "2026-10-13",
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    {
      "label": "HS code",
      "value": "3921.13",
      "source": "border.bot release GLOBAL:hs #1"
    },
    {
      "label": "Covers",
      "value": "Cellular, of polyurethanes",
      "source": "border.bot release GLOBAL:hs #1"
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    {
      "label": "Heading",
      "value": "39.21: Other plates, sheets, film, foil and strip, of plastics",
      "source": "border.bot release GLOBAL:hs #1",
      "url": "https://staging.border.bot/hs-codes/3921"
    },
    {
      "label": "Chapter",
      "value": "39: Plastics and articles thereof",
      "source": "border.bot release GLOBAL:hs #1",
      "url": "https://staging.border.bot/hs-codes/39"
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    {
      "label": "Edition",
      "value": "HS2022",
      "source": "border.bot release GLOBAL:hs #1"
    },
    {
      "label": "Duty rates",
      "value": "Set by each country’s tariff",
      "source": null,
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  "faq": [
    {
      "question": "What does HS code 3921.13 cover?",
      "answer": "HS code 3921.13 covers cellular, of polyurethanes."
    },
    {
      "question": "Which heading and chapter is HS code 3921.13 in?",
      "answer": "HS code 3921.13 is in heading 39.21 (other plates, sheets, film, foil and strip, of plastics) in chapter 39 (plastics and articles thereof)."
    },
    {
      "question": "Where are goods of heading 39.21 classified when 3921.13 doesn’t fit?",
      "answer": "Other goods of heading 39.21 are classified under 3921.11 (cellular, of polymers of styrene), 3921.12 (cellular, of polymers of vinyl chloride), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 3921.13 covers cellular, of polyurethanes.",
        "The legal text of the subheading is “Cellular: Of polyurethanes”, read under “Cellular”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 39.21 are classified under 3921.11 (cellular, of polymers of styrene), 3921.12 (cellular, of polymers of vinyl chloride), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "3921.13 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3921, are heading 39.21; the last two, 13, identify the subheading within the heading.",
        "Countries add their own digits after these six for their national tariff lines."
      ]
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    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No national tariff lines under 3921.13 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3921.13 at six digits and add their own digits after it."
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      "title": "Sources and updates",
      "text": [
        "The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.",
        "This page was last updated on 13 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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    "edition": "HS2022",
    "chapter": {
      "code": "39",
      "description": "Plastics and articles thereof"
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    "heading": {
      "code": "3921",
      "description": "Other plates, sheets, film, foil and strip, of plastics"
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    "subheading": {
      "code": "392113",
      "description": "Cellular: Of polyurethanes",
      "levels": [
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        "Of polyurethanes"
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        "code": "392111",
        "description": "Cellular: Of polymers of styrene"
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        "code": "392114",
        "description": "Cellular: Of regenerated cellulose"
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        "code": "392119",
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        "code": "392190",
        "description": "Other"
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      "indexable": true
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        "dataset": "GLOBAL:hs",
        "country": "GLOBAL",
        "kind": "hs",
        "seq": 1,
        "version": "mytraddal hs2022.csv (HS 2022)",
        "liveAt": "2026-10-13T08:43:06.218Z",
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  "code": "392113",
  "attribution": "border.bot tariff reference (border.bot), compiled from the official publishers named on each page.",
  "terms": "https://staging.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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