3921.90.40.90—Other plates, sheets, film, foil and strip, of plastics, flexible, otherGeneral
4.2%
Units
kg
Column 2
25%
Special
Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
HTS 3921.90.40.90 is the U.S. Harmonized Tariff Schedule classification for Other plates, sheets, film, foil and strip, of plastics, flexible, other. It's a 10-digit statistical line in Chapter 39: Plastics and articles thereof, Section VII: Plastics and Articles Thereof; Rubber and Articles Thereof, used by U.S. Customs and Border Protection to determine the duty rate at entry. 2 Chapter 99 tariff modifications currently stack on top of the base rate, and 2 active AD/CVD orders flag this code.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.88.01 | section_301 | The duty provided in the applicable subheading plus 25% |
| 9903.88.15 | section_301 | The duty provided in the applicable subheading + 7.5% |
Active orders that may apply to imports under this HTS code. HTS coverage is advisory — actual scope depends on each order's product description. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of polyethylene high-performance reflective insulation from Canada
The tariff classification of peel heat seals from the United Kingdom
The tariff classification of silicone coated woven fiberglass from China
The tariff classification of composite sheets of aluminum foil and plastic from Japan
The tariff classification of foil vapor barrier and pressure sensitive tape from Taiwan
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 3921.90.40.90 is the U.S. Harmonized Tariff Schedule classification for Other plates, sheets, film, foil and strip, of plastics, flexible, other. It belongs to Chapter 39 of the HTSUS.
The general (Column 1) duty rate for HTS 3921.90.40.90 is 4.2%. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
Yes. Imports of HTS 3921.90.40.90 from countries party to a trade program (such as USMCA, KORUS, GSP, or the African Growth and Opportunity Act) may qualify for the special rate: Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG). Eligibility depends on rules of origin and certification.
The Column 2 rate for HTS 3921.90.40.90 is 25%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 3921.90.40.90 is covered by section_301 provision 9903.88.01 (The duty provided in the applicable subheading plus 25%). 1 additional overlay also touch this code. Open the code page for the full overlay stack with effective dates and country scopes.
Yes — 2 AD/CVD orders flag this code: A-570-075 (AD, China), C-570-076 (CVD, China). Open the code page for deposit rates, scope determinations, and the linked case lookups.
Free Trade Agreement and special-program eligibility
Tandom guides relevant to this code
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
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How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
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Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
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Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
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What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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