CHAPTER 99 · TRADE MEASURE CODE

9903.55.01

Active

9903.55.01 implements Other Measure, adding Free on top of the base HTS duty. It is effective January 1, 2025.

Data provenance: Rates from HTS Revision 16 (Aug 15, 2026); trade measures verified against CBP CSMS and Federal Register notices through Aug 15, 2026.

Additional rate

Free

Status

Active

Applies to

See scope

Base codes paired

9

What 9903.55.01 implements

Entered under temporary importation bond in aggregate quantities not exceeding the amount specified in U.S. note 32(a) to this subchapter for any period specified in such note, when the product of any country not exempt under U.S. note 32(b) to this subchapter

HTS legal text: Entered under temporary importation bond in aggregate quantities not exceeding the amount specified in U.S. note 32(a) to this subchapter for any period specified in such note, when the product of any country not exempt under U.S. note 32(b) to this subchapter

Effective window: effective January 1, 2025

Base HTS codes 9903.55.01 pairs with

9 linked base codes. Open a base code, then add /from/<country> to see the computed duty.

5503.20.00 Of polyesters 5503.20.00.15 Bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers together 5503.20.00.25 Measuring less than 3.3 decitex 5503.20.00.45 Measuring 3.3 decitex or more but less than 13.2 decitex 5503.20.00.65 Measuring 13.2 decitex or more 5503.20.00.D02 Other: 9813.00.05 Articles to be repaired, altered or processed (including processes which result in articles manufactured or produced in the United States) 9813.00.05.20 Articles to be processed into articles manufactured or produced in the United States 9813.00.05.40 Other

Frequently asked questions

What is 9903.55.01?

9903.55.01 is a U.S. Harmonized Tariff Schedule Chapter 99 subheading that implements Other Measure. It adds Free on top of the duty in the underlying base HTS subheading. It is effective January 1, 2025.

Does 9903.55.01 apply to 5503.20.00?

5503.20.00 (Of polyesters) is among the base HTS codes linked to 9903.55.01. Whether the measure is owed on a specific entry also depends on the country of origin and any applicable exclusion. See the duty-by-origin page for the computed rate.

Where does this come from, and how current is it?

Rates from HTS Revision 16 (Aug 15, 2026); trade measures verified against CBP CSMS and Federal Register notices through Aug 15, 2026.

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