CHAPTER 99 · TRADE MEASURE CODE
9903.45.21
Active9903.45.21 implements Other Measure, adding No change on top of the base HTS duty. It is effective January 1, 2025.
Data provenance: Rates from HTS Revision 19 (Sep 16, 2026); trade measures verified against CBP CSMS and Federal Register notices through Sep 3, 2026.
Additional rate
No change
Status
Applies to
See scope
Base codes paired
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What 9903.45.21 implements
If entered in an annual aggregate quantity not exceeding 12.5 gigawatts, under the terms of such note[Compiler’s note: This subheading and its related note, U.S. note 18 to this subchapter, have expired. See 87 Fed. Reg. 7357.]
HTS legal text: If entered in an annual aggregate quantity not exceeding 12.5 gigawatts, under the terms of such note[Compiler’s note: This subheading and its related note, U.S. note 18 to this subchapter, have expired. See 87 Fed. Reg. 7357.]
Related CBP rulings
The tariff classification of a solar cells from China
The items concerned are mono-crystalline solar cells (ref# M1669BPERCBP). These solar cells are to be imported into the United States for manufacture into 1 GW solar panels. You have proposed classification of the solar cells within subhead
Country of Origin; Substantial Transformation; Solar Cells; Solar Panels; Applicability of Section 201 Safeguard Measures
Merlin purchases CSPV cells produced by a company in Taiwan. These solar cells undergo substantial manufacturing processes in Taiwan, and already have a positive-negative, or P/N junction, but lack the metallization and conductor patterns t
Frequently asked questions
What is 9903.45.21?
9903.45.21 is a U.S. Harmonized Tariff Schedule Chapter 99 subheading that implements Other Measure. It adds No change on top of the duty in the underlying base HTS subheading. It is effective January 1, 2025.
Where does this come from, and how current is it?
Rates from HTS Revision 19 (Sep 16, 2026); trade measures verified against CBP CSMS and Federal Register notices through Sep 3, 2026.
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