{ "summary": "In the United States tariff, line 8421.39.01.20 covers filtering or purifying machinery and apparatus for gases, industrial gas cleaning equipment, electrostatic precipitators. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8421.39 in heading 84.21 (chapter 84).", "updatedAt": "2026-10-09", "facts": [ { "label": "Tariff line", "value": "8421.39.01.20", "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false" }, { "label": "Covers", "value": "Filtering or purifying machinery and apparatus for gases, industrial gas cleaning equipment, electrostatic precipitators", "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" }, { "label": "HS subheading", "value": "8421.39", "source": null, "url": "https://border.bot/hs-codes/842139" } ], "faq": [ { "question": "What does tariff line 8421.39.01.20 cover in the United States tariff?", "answer": "In the United States tariff, line 8421.39.01.20 covers filtering or purifying machinery and apparatus for gases, industrial gas cleaning equipment, electrostatic precipitators." }, { "question": "What is the general (MFN) duty on 8421.39.01.20 in the United States?", "answer": "Goods under this line enter free of general (MFN) duty. The rate is published on 8421.39.01." } ], "sections": [ { "id": "covers", "title": "What this line covers", "text": [ "In the United States tariff, line 8421.39.01.20 covers filtering or purifying machinery and apparatus for gases, industrial gas cleaning equipment, electrostatic precipitators.", "Its legal text is “Electrostatic precipitators”, read under “Filtering or purifying machinery and apparatus for gases”, “Other”, “Other” and “Industrial gas cleaning equipment”." ] }, { "id": "structure", "title": "How it is structured", "text": [ "It falls under HS subheading 8421.39 in heading 84.21 (chapter 84). 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 8421.39.01." ] }, { "id": "other-countries", "title": "In other countries", "text": [ "No other national tariff on border.bot has live lines under 8421.39 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-line", "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": "84", "description": "Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof" }, "heading": { "code": "8421", "description": "Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof" }, "subheading": { "code": "842139", "description": "Filtering or purifying machinery and apparatus for gases: Other" }, "line": { "code": "8421390120", "description": "Electrostatic precipitators", "levels": [ "Filtering or purifying machinery and apparatus for gases", "Other", "Other", "Industrial gas cleaning equipment", "Electrostatic precipitators" ], "english": null, "keywords": [], "lang": "en", "general": { "code": "84213901", "dutyText": "Free", "startDate": null, "endDate": null, "unit": null }, "preferences": [], "measures": [], "restrictions": [] }, "siblings": [ { "code": "8421390105", "description": "For machine tools of headings 8456 through 8465, inclusive" }, { "code": "8421390115", "description": "Other" }, { "code": "8421390130", "description": "Other" }, { "code": "8421390140", "description": "Gas separation equipment" }, { "code": "8421390160", "description": "Pneumatic fluid power filters, rated at 550 kPa or greater" }, { "code": "8421390190", "description": "Other" } ], "siblingsTotal": 6, "previous": { "code": "8421390115", "description": "Other", "indexable": true }, "next": { "code": "8421390130", "description": "Other", "indexable": true }, "otherSchedules": [], "seo": { "canonicalPath": "/countries/united-states/hs-codes/8421390120", "robots": "index", "sitemap": true, "reasons": [ "1 national lines" ] } }, "pagination": { "page": 1, "pages": 1, "size": 100, "total": 0, "prev": null, "next": null }, "previous": "https://border.bot/countries/united-states/hs-codes/8421390115", "next": "https://border.bot/countries/united-states/hs-codes/8421390130", "links": { "self": "https://border.bot/countries/united-states/hs-codes/8421390120.json", "html": "https://border.bot/countries/united-states/hs-codes/8421390120", "canonical": "https://border.bot/countries/united-states/hs-codes/8421390120", "markdown": "https://border.bot/countries/united-states/hs-codes/8421390120.md", "tools": { "calculator": "https://border.bot/tools/landed-cost-calculator", "classifier": "https://border.bot/tools/hs-code-classifier", "api": "https://api.border.bot/v1" } }, "code": "8421390120", "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. 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