{
  "summary": "HS code 7310.21 covers tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment, of a capacity of less than 50 l, cans which are to be closed by soldering or crimping. It sits in heading 73.10 (tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment) in chapter 73 (articles of iron or steel). Other goods of heading 73.10 are classified under 7310.10 (of a capacity of 50l or more) and 7310.29 (of a capacity of less than 50 l, other). National tariff lines under 7310.21 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": "7310.21",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment, of a capacity of less than 50 l, cans which are to be closed by soldering or crimping",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "73.10: Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/7310"
    },
    {
      "label": "Chapter",
      "value": "73: Articles of iron or steel",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/73"
    },
    {
      "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/731021"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 7310.21 cover?",
      "answer": "HS code 7310.21 covers tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment, of a capacity of less than 50 l, cans which are to be closed by soldering or crimping."
    },
    {
      "question": "Which heading and chapter is HS code 7310.21 in?",
      "answer": "HS code 7310.21 is in heading 73.10 (tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment) in chapter 73 (articles of iron or steel)."
    },
    {
      "question": "Where are goods of heading 73.10 classified when 7310.21 doesn’t fit?",
      "answer": "Other goods of heading 73.10 are classified under 7310.10 (of a capacity of 50l or more) and 7310.29 (of a capacity of less than 50 l, other)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 7310.21?",
      "answer": "National tariff lines under 7310.21 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 7310.21 covers tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment, of a capacity of less than 50 l, cans which are to be closed by soldering or crimping.",
        "The legal text of the subheading is “Of a capacity of less than 50 l: Cans which are to be closed by soldering or crimping”, read under “Of a capacity of less than 50 l”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 73.10 are classified under 7310.10 (of a capacity of 50l or more) and 7310.29 (of a capacity of less than 50 l, other)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "7310.21 is a six-digit subheading. Its first two digits, 73, are the chapter; the first four, 7310, are heading 73.10; the last two, 21, 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 7310.21 are live on border.bot for the United States (3 lines, also used by 1 other country)."
      ]
    },
    {
      "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": "73",
      "description": "Articles of iron or steel"
    },
    "heading": {
      "code": "7310",
      "description": "Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment"
    },
    "subheading": {
      "code": "731021",
      "description": "Of a capacity of less than 50 l: Cans which are to be closed by soldering or crimping",
      "levels": [
        "Of a capacity of less than 50 l",
        "Cans which are to be closed by soldering or crimping"
      ],
      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "731010",
        "description": "Of a capacity of 50l or more"
      },
      {
        "code": "731029",
        "description": "Of a capacity of less than 50 l: Other"
      }
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    "schedules": [
      {
        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 3,
        "members": 1
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    "provenance": [
      {
        "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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    "pages": 1,
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  "code": "731021",
  "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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}