{
  "summary": "In the United States tariff, line 4503.90.20.00 covers disks, wafers and washers. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 4503.90 in heading 45.03 (chapter 45).",
  "updatedAt": "2026-10-09",
  "facts": [
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      "label": "Tariff line",
      "value": "4503.90.20.00",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Covers",
      "value": "Disks, wafers and washers",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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    {
      "label": "Additional duties",
      "value": "None recorded",
      "source": null
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    {
      "label": "Restrictions",
      "value": "None recorded",
      "source": null
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      "question": "What does tariff line 4503.90.20.00 cover in the United States tariff?",
      "answer": "In the United States tariff, line 4503.90.20.00 covers disks, wafers and washers."
    },
    {
      "question": "What is the general (MFN) duty on 4503.90.20.00 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty."
    }
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  "sections": [
    {
      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 4503.90.20.00 covers disks, wafers and washers.",
        "Its legal text is “Disks, wafers and washers”, read under “Other”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 4503.90 in heading 45.03 (chapter 45). 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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    {
      "id": "duty",
      "title": "Duty",
      "text": [
        "Goods under this line enter free of general (MFN) duty."
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    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 4503.90 yet."
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    {
      "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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    "chapter": {
      "code": "45",
      "description": "Cork and articles of cork"
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    "heading": {
      "code": "4503",
      "description": "Articles of natural cork"
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    "subheading": {
      "code": "450390",
      "description": "Other"
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    "line": {
      "code": "4503902000",
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      "keywords": [],
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        "code": "4503902000",
        "dutyText": "Free",
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        "unit": null
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      "measures": [],
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        "code": "4503904000",
        "description": "Wallcoverings, backed with paper or otherwise reinforced"
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        "code": "4503906000",
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  "code": "4503902000",
  "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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