{
  "summary": "The United States tariff splits HS 0303.31 (flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)) into 3 national lines: 0303.31.00.10 (atlantic halibut (Hippoglossus hippoglossus)), 0303.31.00.20 (pacific halibut (Hippoglossus stenolepis)) and 0303.31.00.30 (greenland turbot (Greenland halibut) (Reinhardtius hippoglossoides)). Every United States line under 0303.31 is free of general (MFN) duty.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "HS subheading",
      "value": "0303.31",
      "source": null,
      "url": "https://border.bot/hs-codes/030331"
    },
    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "National lines",
      "value": "3",
      "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": "03: Fish and crustaceans, molluscs and other aquatic invertebrates",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 0303.31?",
      "answer": "The United States tariff splits HS 0303.31 (flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)) into 3 national lines: 0303.31.00.10 (atlantic halibut (Hippoglossus hippoglossus)), 0303.31.00.20 (pacific halibut (Hippoglossus stenolepis)) and 0303.31.00.30 (greenland turbot (Greenland halibut) (Reinhardtius hippoglossoides))."
    },
    {
      "question": "What is the duty on HS 0303.31 in the United States?",
      "answer": "Every United States line under 0303.31 is free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 0303.31",
      "text": [
        "The United States tariff splits HS 0303.31 (flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)) into 3 national lines: 0303.31.00.10 (atlantic halibut (Hippoglossus hippoglossus)), 0303.31.00.20 (pacific halibut (Hippoglossus stenolepis)) and 0303.31.00.30 (greenland turbot (Greenland halibut) (Reinhardtius hippoglossoides)).",
        "Every United States line under 0303.31 is free of general (MFN) duty."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 0303.31 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."
      ]
    }
  ],
  "data": {
    "type": "country-subheading",
    "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": [
      {
        "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"
        ]
      },
      {
        "dataset": "US:rates",
        "country": "US",
        "kind": "rates",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:36.287Z",
        "origin": "source",
        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
        ]
      },
      {
        "dataset": "US:programmes",
        "country": "US",
        "kind": "programmes",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:58.040Z",
        "origin": "source",
        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
        ]
      }
    ],
    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "03",
      "description": "Fish and crustaceans, molluscs and other aquatic invertebrates"
    },
    "heading": {
      "code": "0303",
      "description": "Fish, frozen, excluding fish fillets and other fish meat of heading 0304"
    },
    "subheading": {
      "code": "030331",
      "description": "Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)"
    },
    "lines": [
      {
        "code": "0303310010",
        "description": "Atlantic halibut (Hippoglossus hippoglossus)",
        "levels": [
          "Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303.91 to 0303.99",
          "Halibut and Greenland turbot (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)",
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        "general": {
          "code": "03033100",
          "dutyText": "Free",
          "startDate": null,
          "endDate": null,
          "unit": null
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        "measures": [],
        "restrictions": []
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      {
        "code": "0303310020",
        "description": "Pacific halibut (Hippoglossus stenolepis)",
        "levels": [
          "Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303.91 to 0303.99",
          "Halibut and Greenland turbot (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)",
          "Pacific halibut (Hippoglossus stenolepis)"
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          "code": "03033100",
          "dutyText": "Free",
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      {
        "code": "0303310030",
        "description": "Greenland turbot (Greenland halibut) (Reinhardtius hippoglossoides)",
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          "Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303.91 to 0303.99",
          "Halibut and Greenland turbot (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)",
          "Greenland turbot (Greenland halibut) (Reinhardtius hippoglossoides)"
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        "english": null,
        "keywords": [],
        "lang": "en",
        "general": {
          "code": "03033100",
          "dutyText": "Free",
          "startDate": null,
          "endDate": null,
          "unit": null
        },
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        "measures": [],
        "restrictions": []
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      "code": "030329",
      "description": "Fish, frozen, excluding fish fillets and other fish meat of heading 0304",
      "indexable": true
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      "code": "030332",
      "description": "Fish, frozen, excluding fish fillets and other fish meat of heading 0304",
      "indexable": false
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  "code": "030331",
  "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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}