8421 39 01 40

Code

8421 39 01 40

Type

10-digit tariff line

Duty rate

Free (set at subheading 84213901)

Unit

No.

Classification rulings (U.S. Customs, CROSS)

• H334008 · 2025-02-14 — Request for Internal Advice; Classification of Ceramic Filters for Hot Gas Filtration

  The following is our decision on a request for internal advice, which was filed on July 5, 2023, on behalf of Ceramic Filter Alliance, LLC (requestor). The request pertains to the classification under the Harmonized Tariff Schedule of the United States (HTSUS) by U.S. Customs and Border Protection (CBP) of certain ceramic filters for hot gas filtration. In reaching the determination below, CBP has considered information submitted with the request and provided following a virtual conference between the requestor and CBP held on March 5, 2024. Ceramic Filter Alliance, LLC, requested that…

• N335925 · 2023-11-03 — The tariff classification of the HP/LP Flare Knockout/CHD Module from Canada

  Descriptive literature and pictures were provided for our review. The item under consideration is described as the HP (High Pressure)/LP (Low Pressure) Flare Knockout/CHD (Closed Hydrocarbon Drain) Module (Module No. 142), which is a module that will be incorporated into the Nanushuk Processing Facility (NPF). The NPF, when completed, will process oil deposits from the Nanushuk reservoir into sales quality oil. The Flare Knockout/CHD Module is comprised of building heater motors, building heaters, a closed hydrocarbon drain drum, a closed hydrocarbon drain drum pump, a closed hydrocarbon…

• 8421 39 01 05 — Dust collection and air purification equipment: — For machine tools of headings 8456 through 8465, inclusive
• 8421 39 01 15 — Dust collection and air purification equipment: — Other
• 8421 39 01 20 — Other: — Industrial gas cleaning equipment: — Electrostatic precipitators
• 8421 39 01 30 — Other: — Industrial gas cleaning equipment: — Other
• 8421 39 01 60 — Other: — Other: — Pneumatic fluid power filters, rated at 550 kPa or greater
• 8421 39 01 90 — Other: — Other: — Other

• 842139 — ТН ВЭД ЕАЭС: прочее:
• 842139 — EU CN/TARIC: Filtering or purifying machinery and apparatus for gases — Other

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