CHAPTER 99 · TRADE MEASURE CODE
9903.45.30
Active9903.45.30 implements Other Measure, adding +25% on top of the base HTS duty. It is effective August 15, 2026.
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
+25%
Status
Applies to
See scope
Base codes paired
—
What 9903.45.30 implements
Quartz surface products, as defined in U.S. note 41(a) to this subchapter, when the product of any country not exempt under U.S. note 41(c) to this subchapter, if entered in an aggregate quantity not exceeding the quantity defined in U.S. note 41(d) to this subchapter
HTS legal text: Quartz surface products, as defined in U.S. note 41(a) to this subchapter, when the product of any country not exempt under U.S. note 41(c) to this subchapter, if entered in an aggregate quantity not exceeding the quantity defined in U.S. note 41(d) to this subchapter
Frequently asked questions
What is 9903.45.30?
9903.45.30 is a U.S. Harmonized Tariff Schedule Chapter 99 subheading that implements Other Measure. It adds +25% on top of the duty in the underlying base HTS subheading. It is effective August 15, 2026.
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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