{
  "summary": "HS code 3906.90 covers acrylic polymers in primary forms, other than those classified in 3906.10. It sits in heading 39.06 (acrylic polymers in primary forms) in chapter 39 (plastics and articles thereof). Other goods of heading 39.06 are classified under 3906.10 (poly(methyl methacrylate)). National tariff lines under 3906.90 are live on border.bot for the United States (3 lines, also used by 1 other country).",
  "updatedAt": "2026-10-11",
  "facts": [
    {
      "label": "HS code",
      "value": "3906.90",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Acrylic polymers in primary forms",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "39.06: Acrylic polymers in primary forms",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/3906"
    },
    {
      "label": "Chapter",
      "value": "39: Plastics and articles thereof",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/39"
    },
    {
      "label": "Edition",
      "value": "HS2022",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Duty in the United States",
      "value": "See its 3 lines",
      "source": null,
      "url": "https://border.bot/countries/united-states/hs-codes/390690"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 3906.90 cover?",
      "answer": "HS code 3906.90 covers acrylic polymers in primary forms, other than those classified in 3906.10."
    },
    {
      "question": "Which heading and chapter is HS code 3906.90 in?",
      "answer": "HS code 3906.90 is in heading 39.06 (acrylic polymers in primary forms) in chapter 39 (plastics and articles thereof)."
    },
    {
      "question": "Where are goods of heading 39.06 classified when 3906.90 doesn’t fit?",
      "answer": "Other goods of heading 39.06 are classified under 3906.10 (poly(methyl methacrylate))."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 3906.90?",
      "answer": "National tariff lines under 3906.90 are live on border.bot for the United States (3 lines, also used by 1 other country)."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 3906.90 covers acrylic polymers in primary forms, other than those classified in 3906.10.",
        "The legal text of the subheading is “Other”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 39.06 are classified under 3906.10 (poly(methyl methacrylate))."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "3906.90 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3906, are heading 39.06; the last two, 90, identify the subheading within the heading.",
        "Countries add their own digits after these six for their national tariff lines."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "National tariff lines under 3906.90 are live on border.bot for the United States (3 lines, also used by 1 other country)."
      ]
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      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.",
        "This page was last updated on 11 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."
      ]
    }
  ],
  "data": {
    "type": "hs-subheading",
    "edition": "HS2022",
    "chapter": {
      "code": "39",
      "description": "Plastics and articles thereof"
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    "heading": {
      "code": "3906",
      "description": "Acrylic polymers in primary forms"
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    "subheading": {
      "code": "390690",
      "description": "Other",
      "levels": [
        "Other"
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      "english": null,
      "keywords": []
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    "siblings": [
      {
        "code": "390610",
        "description": "Poly(methyl methacrylate)"
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        "dataset": "GLOBAL:hs",
        "country": "GLOBAL",
        "kind": "hs",
        "seq": 2,
        "version": "mytraddal hs2022.csv (HS 2022)",
        "liveAt": "2026-10-11T06:04:17.693Z",
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  "code": "390690",
  "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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