{
  "summary": "HS code 5506.40 covers synthetic staple fibres, carded, combed or otherwise processed for spinning, of polypropylene. It sits in heading 55.06 (synthetic staple fibres, carded, combed or otherwise processed for spinning) in chapter 55 (man-made staple fibres). Other goods of heading 55.06 are classified under 5506.10 (of nylon or other polyamides), 5506.20 (of polyesters), 5506.30 (acrylic or modacrylic) or 5506.90 (other). National tariff lines under 5506.40 are live on border.bot for the United States (1 line, also used by 1 other country).",
  "updatedAt": "2026-10-11",
  "facts": [
    {
      "label": "HS code",
      "value": "5506.40",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Synthetic staple fibres, carded, combed or otherwise processed for spinning, of polypropylene",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "55.06: Synthetic staple fibres, carded, combed or otherwise processed for spinning",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/5506"
    },
    {
      "label": "Chapter",
      "value": "55: Man-made staple fibres",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/55"
    },
    {
      "label": "Edition",
      "value": "HS2022",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Duty in the United States",
      "value": "See its 1 line",
      "source": null,
      "url": "https://border.bot/countries/united-states/hs-codes/550640"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 5506.40 cover?",
      "answer": "HS code 5506.40 covers synthetic staple fibres, carded, combed or otherwise processed for spinning, of polypropylene."
    },
    {
      "question": "Which heading and chapter is HS code 5506.40 in?",
      "answer": "HS code 5506.40 is in heading 55.06 (synthetic staple fibres, carded, combed or otherwise processed for spinning) in chapter 55 (man-made staple fibres)."
    },
    {
      "question": "Where are goods of heading 55.06 classified when 5506.40 doesn’t fit?",
      "answer": "Other goods of heading 55.06 are classified under 5506.10 (of nylon or other polyamides), 5506.20 (of polyesters), 5506.30 (acrylic or modacrylic) or 5506.90 (other)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 5506.40?",
      "answer": "National tariff lines under 5506.40 are live on border.bot for the United States (1 line, also used by 1 other country)."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 5506.40 covers synthetic staple fibres, carded, combed or otherwise processed for spinning, of polypropylene.",
        "The legal text of the subheading is “Of polypropylene”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 55.06 are classified under 5506.10 (of nylon or other polyamides), 5506.20 (of polyesters), 5506.30 (acrylic or modacrylic) or 5506.90 (other)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "5506.40 is a six-digit subheading. Its first two digits, 55, are the chapter; the first four, 5506, are heading 55.06; the last two, 40, 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 5506.40 are live on border.bot for the United States (1 line, also used by 1 other country)."
      ]
    },
    {
      "id": "related",
      "title": "Related codes",
      "text": [
        "The same text, “Of polypropylene”, also divides 2 other headings in chapter 55: 5501.40 under heading 55.01 and 5503.40 under heading 55.03."
      ]
    },
    {
      "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": "55",
      "description": "Man-made staple fibres"
    },
    "heading": {
      "code": "5506",
      "description": "Synthetic staple fibres, carded, combed or otherwise processed for spinning"
    },
    "subheading": {
      "code": "550640",
      "description": "Of polypropylene",
      "levels": [
        "Of polypropylene"
      ],
      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "550610",
        "description": "Of nylon or other polyamides"
      },
      {
        "code": "550620",
        "description": "Of polyesters"
      },
      {
        "code": "550630",
        "description": "Acrylic or modacrylic"
      },
      {
        "code": "550690",
        "description": "Other"
      }
    ],
    "related": [
      {
        "code": "550140",
        "description": "Of polypropylene",
        "heading": {
          "code": "5501",
          "description": "Synthetic filament tow"
        }
      },
      {
        "code": "550340",
        "description": "Of polypropylene",
        "heading": {
          "code": "5503",
          "description": "Synthetic staple fibres, not carded, combed or otherwise processed for spinning"
        }
      }
    ],
    "previous": {
      "code": "550630",
      "description": "Acrylic or modacrylic",
      "indexable": true
    },
    "next": {
      "code": "550690",
      "description": "Other",
      "indexable": true
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    "schedules": [
      {
        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 1,
        "members": 1
      }
    ],
    "provenance": [
      {
        "dataset": "GLOBAL:hs",
        "country": "GLOBAL",
        "kind": "hs",
        "seq": 2,
        "version": "mytraddal hs2022.csv (HS 2022)",
        "liveAt": "2026-10-11T06:04:17.693Z",
        "origin": "upload",
        "sourceUrls": []
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  "previous": "https://border.bot/hs-codes/550630",
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  "code": "550640",
  "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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