Key facts
- HS subheading
- 3921.13
- National lines
- 5
- Tariff
- United States
- Chapter
- 39: Plastics and articles thereof
Summary
The United States tariff splits HS 3921.13 (cellular: Of polyurethanes) into 5 national lines: 3921.13.11.00 (over 70 percent by weight of plastics), 3921.13.15.00 (other (229)), 3921.13.19.10 (products with textile components in which vegetable fibers predominate by weight over any other single textile fiber), 3921.13.19.50 (other) and 1 other. The general (MFN) duty differs by line: 4.2% on 3921.13.11.00, 6.5% on 3921.13.15.00, 5.3% on 3921.13.19.10, 5.3% on 3921.13.19.50 and 4.2% on 3921.13.50.00.
United States lines under 3921.13
The United States tariff splits HS 3921.13 (cellular: Of polyurethanes) into 5 national lines: 3921.13.11.00 (over 70 percent by weight of plastics), 3921.13.15.00 (other (229)), 3921.13.19.10 (products with textile components in which vegetable fibers predominate by weight over any other single textile fiber), 3921.13.19.50 (other) and 1 other.
The general (MFN) duty differs by line: 4.2% on 3921.13.11.00, 6.5% on 3921.13.15.00, 5.3% on 3921.13.19.10, 5.3% on 3921.13.19.50 and 4.2% on 3921.13.50.00.
- 3921.13.11.00Over 70 percent by weight of plasticsDuty: 4.2%
- 3921.13.15.00Other (229)Duty: 6.5%
- 3921.13.19.10Products with textile components in which vegetable fibers predominate by weight over any other single textile fiberDuty: 5.3%
- 3921.13.19.50OtherDuty: 5.3%
- 3921.13.50.00OtherDuty: 4.2%
In other countries
No other national tariff on border.bot has live lines under 3921.13 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 3921.13?
The United States tariff splits HS 3921.13 (cellular: Of polyurethanes) into 5 national lines: 3921.13.11.00 (over 70 percent by weight of plastics), 3921.13.15.00 (other (229)), 3921.13.19.10 (products with textile components in which vegetable fibers predominate by weight over any other single textile fiber), 3921.13.19.50 (other) and 1 other.
What is the duty on HS 3921.13 in the United States?
The general (MFN) duty differs by line: 4.2% on 3921.13.11.00, 6.5% on 3921.13.15.00, 5.3% on 3921.13.19.10, 5.3% on 3921.13.19.50 and 4.2% on 3921.13.50.00.
Sources and updates
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.
Official source files: