{
  "summary": "The United States tariff has 411 national lines in HS chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof), under 141 subheadings in 32 headings.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "National lines",
      "value": "411",
      "source": null
    },
    {
      "label": "Subheadings",
      "value": "141",
      "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"
    },
    {
      "label": "Chapter",
      "value": "90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have in HS chapter 90?",
      "answer": "The United States tariff has 411 national lines in HS chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof), under 141 subheadings in 32 headings."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "Subheadings with United States lines",
      "text": [
        "The United States tariff has 411 national lines in HS chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof), under 141 subheadings in 32 headings."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under chapter 90 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."
      ]
    }
  ],
  "data": {
    "type": "country-chapter",
    "country": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
    },
    "schedule": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
    },
    "borrowed": false,
    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
    "provenance": [
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        "dataset": "US:hs",
        "country": "US",
        "kind": "hs",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:50.043Z",
        "origin": "source",
        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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      },
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        "liveAt": "2026-10-09T21:15:36.287Z",
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        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
        ]
      },
      {
        "dataset": "US:programmes",
        "country": "US",
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        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:58.040Z",
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "90",
      "description": "Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof"
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        "code": "9026",
        "description": "Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032; parts and accessories thereof",
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            "code": "902610",
            "description": "For measuring or checking the flow or level of liquids",
            "lines": 4
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          {
            "code": "902620",
            "description": "For measuring or checking pressure",
            "lines": 2
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            "code": "902680",
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            "lines": 3
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            "code": "902690",
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            "lines": 3
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        "code": "9027",
        "description": "Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof",
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            "code": "902710",
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            "code": "902730",
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            "description": "Revolution counters, production counters, taximeters, mileometers, pedometers and the like",
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            "code": "902920",
            "description": "Speed indicators and tachometers; stroboscopes",
            "lines": 4
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            "code": "902990",
            "description": "Parts and accessories",
            "lines": 5
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        "code": "9030",
        "description": "Oscilloscopes, spectrum analyzers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other ionizing radiations; parts and accessories thereof:​",
        "subheadings": [
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            "code": "903010",
            "description": "Instruments and apparatus for measuring or detecting ionising radiations",
            "lines": 1
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            "code": "903020",
            "description": "Oscilloscopes and oscillographs",
            "lines": 2
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            "code": "903031",
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            "lines": 1
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            "code": "903032",
            "description": "Other instruments and apparatus, for measuring or checking voltage, current, resistance or power (other than those for measuring or checking semiconductor wafers or devices): Multimeters with a recording device",
            "lines": 1
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          {
            "code": "903033",
            "description": "Other instruments and apparatus, for measuring or checking voltage, current, resistance or power (other than those for measuring or checking semiconductor wafers or devices): Other, without a recording device",
            "lines": 2
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            "code": "903039",
            "description": "Other instruments and apparatus, for measuring or checking voltage, current, resistance or power (other than those for measuring or checking semiconductor wafers or devices): Other, with a recording device",
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            "code": "903040",
            "description": "Other instruments and apparatus, specially designed for telecommunications (for example, cross-talk meters, gain measuring instruments, distortion factor meters, psophometers)",
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        "code": "9031",
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            "code": "903110",
            "description": "Machines for balancing mechanical parts",
            "lines": 1
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            "code": "903120",
            "description": "Test benches",
            "lines": 1
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            "code": "903190",
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            "lines": 8
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        "code": "9032",
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            "code": "903210",
            "description": "Thermostats",
            "lines": 3
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            "code": "903220",
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            "lines": 1
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            "code": "903300",
            "description": "Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of Chapter 90",
            "lines": 3
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