2512.00.00.00
Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less
Data provenance: Rates from HTS Revision 19 (Sep 16, 2026); trade measures verified against CBP CSMS and Federal Register notices through Sep 3, 2026.
Duty rates
Column 1 (General / MFN)
Free
Column 2 (Non-NTR)
Free
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.90.08
35%
ActiveArticles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Applies to origin: RU, BY
Effective from April 5, 2025
9903.88.03
LIST_1
The duty provided in the applicable subheading + 25%
ActiveExcept as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Applies to origin: CN
Effective from August 23, 2018
Related CBP rulings
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Coastwise Transportation; 46 U.S.C. § 55103; 19 C.F.R. § 4.50(b)
You ask whether one individual may be transported on the non-coastwise-qualified M/V SHANDONG HAI DA (the “vessel”), from Philadelphia, Pennsylvania, to Baltimore, Maryland, from on or about December 28, 2013, through on or about December 3
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Laser Engraving; Country of Origin; Substantial Transformation
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18 U.S.C. 2510, 2512; Devices primarily useful for the purpose of the surreptitious interception of wire, oral, or electronic communications
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The tariff classification of cat litter from New Zealand
You indicated in your letter that the product is a naturally occurring mixture containing 80 percent diatomite and 20 percent pumicite. The lab determined that the sample, an off-white powder with clumps, is a siliceous earth having an appa
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2512.00.00.00 from each major US trading partner.
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