{
  "summary": "In the United States tariff, line 8542.31.00.45 covers electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, processors (including microprocessors), central processing units (CPUs). Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8542.31 in heading 85.42 (chapter 85).",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "Tariff line",
      "value": "8542.31.00.45",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Covers",
      "value": "Electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, processors (including microprocessors), central processing units (CPUs)",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Additional duties",
      "value": "None recorded",
      "source": null
    },
    {
      "label": "Restrictions",
      "value": "None recorded",
      "source": null
    },
    {
      "label": "Tariff",
      "value": "United States",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false",
      "url": "https://border.bot/countries/united-states"
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    {
      "label": "HS subheading",
      "value": "8542.31",
      "source": null,
      "url": "https://border.bot/hs-codes/854231"
    }
  ],
  "faq": [
    {
      "question": "What does tariff line 8542.31.00.45 cover in the United States tariff?",
      "answer": "In the United States tariff, line 8542.31.00.45 covers electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, processors (including microprocessors), central processing units (CPUs)."
    },
    {
      "question": "What is the general (MFN) duty on 8542.31.00.45 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty. The rate is published on 8542.31.00."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 8542.31.00.45 covers electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, processors (including microprocessors), central processing units (CPUs).",
        "Its legal text is “Central processing units (CPUs)”, read under “Electronic integrated circuits”, “Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits” and “Processors (including microprocessors)”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 8542.31 in heading 85.42 (chapter 85). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff."
      ]
    },
    {
      "id": "duty",
      "title": "Duty",
      "text": [
        "Goods under this line enter free of general (MFN) duty.",
        "The rate is published on 8542.31.00."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 8542.31 yet."
      ]
    },
    {
      "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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      "code": "US",
      "name": "United States",
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      "name": "United States",
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "85",
      "description": "Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles"
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      "code": "8542",
      "description": "Electronic integrated circuits; parts thereof"
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    "subheading": {
      "code": "854231",
      "description": "Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits"
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      "description": "Central processing units (CPUs)",
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        "Processors (including microprocessors)",
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      "general": {
        "code": "85423100",
        "dutyText": "Free",
        "startDate": null,
        "endDate": null,
        "unit": null
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      "preferences": [],
      "measures": [],
      "restrictions": []
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      {
        "code": "8542310025",
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        "code": "8542310030",
        "description": "Other"
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      {
        "code": "8542310035",
        "description": "Digital signal processors (DSPs)"
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        "code": "8542310040",
        "description": "Graphics processing units (GPUs)"
      },
      {
        "code": "8542310050",
        "description": "Other"
      },
      {
        "code": "8542310055",
        "description": "Complex programmable logic devices (CPLDs)"
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        "code": "8542310060",
        "description": "Field programmable gate arrays (FPGAs)"
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      {
        "code": "8542310065",
        "description": "Other"
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      {
        "code": "8542310070",
        "description": "System on chip (SoCs)"
      },
      {
        "code": "8542310075",
        "description": "Other"
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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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