Heading 9903

9903.45.30

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

Duty rates

General
25%
The base rate for goods from most countries.
Special
—
Lower rates under trade agreements and programs, for goods that meet their rules of origin; each symbol names one.
Column 2
25%
The higher rate for the few countries without normal trade relations with the United States.

Base columns of the 2026 HTS Revision 22, in force from Oct. 30, 2026 (official source).

The U.S. notes it refers to

As the 2026 HTS Revision 22 writes them (official notes); each code opens its page. Whether this heading applies to goods depends on the origin, the date and the product: the calculator says it.

U.S. note 41(a)

(a) Headings 9903.45.30 and 9903.45.31 establish temporary modifications applicable to entries of quartz surface products. For the purposes of this note, the term quartz surface products (“QSP”) means slabs and other surfaces created from a mixture of materials that includes predominately silica ( e.g., quartz, quartz powder, cristobalite, glass powder) as well as a resin binder ( e.g. , an unsaturated polyester). The incorporation of other materials, including, but not limited to, pigments, cement, or other additives does not remove the merchandise from the scope of this note. However, the scope only includes products where the silica content is greater than any other single material, by actual weight. QSP is typically sold as rectangular slabs with a total surface area of approximately 45 to 60 square feet and a nominal thickness of one, two, or three centimeters. However, the scope includes surface products of all other sizes, thicknesses, and shapes. In addition to slabs, the scope includes, but is not limited to, other surfaces such as countertops, backsplashes, vanity tops, bar tops, work tops, tabletops, flooring, wall facing, shower surrounds, fireplace surrounds, mantels, and tiles. QSP may be polished or unpolished, cut or uncut, fabricated or not fabricated, cured or uncured, edged or not edged, finished or unfinished, thermoformed or not thermoformed, packaged or unpackaged, and may have any type of surface finish. In addition, QSP is covered by the scope whether or not it is imported attached to, or in conjunction with, non-subject merchandise such as sinks, sink bowls, vanities, cabinets, and furniture. If QSP is imported attached to, or in conjunction with, such non-subject merchandise, only the QSP is covered by the scope. Subject merchandise includes material matching the above description that has been finished, packaged, or otherwise fabricated in a third country, including by cutting, polishing, curing, edging, thermoforming, attaching to, or packaging with another product, or any other finishing, packaging or fabrication that would not otherwise remove the merchandise from the scope if performed in the country of manufacture of the QSP. The scope does not cover quarried stone surface products, such as granite, marble, soapstone or quartzite. The scope covers imported products provided for under HTSUS subheadings 6810.99.0020, 6810.99.0040, and 7020.00.6000.

U.S. note 41(c)

(c) For the purposes of this note and headings 9903.45.30 and 9903.45.31, the products of the following countries shall not be subject to the rates of duty and tariff-rate quotas provided for therein:

(i) Canada and Mexico;

(ii) Australia, Colombia, Costa Rica, Dominican Republic, El Salvador, Guatemala, Honduras, Israel, Nicaragua, Panama, Peru, Singapore and South Korea;

(iii) The following developing countries: Afghanistan, Albania, Algeria, Angola, Armenia, Azerbaijan, Belize, Benin, Bhutan, Bolivia, Bosnia and Hercegovina, Botswana, Brazil, Burkina Faso, Burma, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad, Comoros, Congo (Brazzaville), Congo (Kinshasa), Côte d'Ivoire, Djibouti, Dominica, Ecuador, Egypt, Eritrea, Eswatini, Ethiopia, Fiji, Gabon, The Gambia, Georgia, Ghana, Grenada, Guinea, Guinea-Bissau, Guyana, Haiti, Indonesia, Iraq, Jamaica, Jordan, Kazakhstan, Kenya, Kiribati, Kosovo, Kyrgyzstan, Lebanon, Lesotho, Liberia, Madagascar, Malawi, Maldives, Mali, Mauritania, Mauritius, Moldova, Mongolia, Montenegro, Mozambique, Namibia, Nepal, Niger, Nigeria, North Macedonia, Pakistan, Papua New Guinea, Paraguay, Philippines, Rwanda, Saint Lucia, Saint Vincent and the Grenadines, Samoa, Sao Tomé and Principe, Senegal, Serbia, Sierra Leone, Solomon Islands, Somalia, South Africa, South Sudan, Sri Lanka, Suriname, Tanzania, Timor-Leste, Togo, Tonga, Tunisia, Tuvalu, Uganda, Ukraine, Uzbekistan, Vanuatu, Yemen (Republic of), Zambia and Zimbabwe; and

(iv) The following Caribbean Basin Economic Recovery Act beneficiary countries and territories: Antigua and Barbuda, Aruba, the Bahamas, Barbados, Belize, British Virgin Islands, Curaçao, Dominica, Grenada, Guyana, Haiti, Jamaica, Montserrat, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, and Trinidad and Tobago.

U.S. note 41(d)

(d) For the purposes of heading 9903.45.30, the maximum aggregate quantity of all QSP as defined in subdivision (a) in the periods enumerated below shall be as follows: null 1st quarter 2nd quarter 3rd quarter 4th quarter Annual August 15 through November 14 November 15 through February 13 February 14 through May 15 May 16 through August 14 If entered 3,251,606 3,251,606 3,251,606 3,251,606 during the period meters square meters square meters square meters square August 15, 2026, through August 14, 2027: null null null null 13,006,426 meters square null null null null If entered 3,692,896 3,692,896 3,692,896 3,692,896 during the period meters square meters square meters square meters square August 15, 2027, through August 14, 2028: null null null null 14,771,583 meters square null null null null If entered 3,809,025 3,809,025 3,809,025 3,809,025 during the period meters square meters square meters square meters square August 15, 2028, through August 14, 2029: null null null null 15,236,099 meters square null null null null If entered 3,925,153 3,925,153 3,925,153 3,925,153 during the period meters square meters square meters square meters square August 15, 2029, through August 14, 2030: null null null null 15,700,614 meters square null null null null No shipments of QSP shall be allowed to enter in an aggregate quantity under heading 9903.45.30, during any of the quarters above that is in excess of the quantity stated, except to the extent of any unused quantity carried forward from a prior quarter. U.S. Customs and Border Protection shall add any unused quantity of the total quota for a quarterly period to the total quota for the next quarterly period no later than 14 days after the last day of the prior quarterly period. Entry of goods in excess of the quantities specified above, and any applicable quantity carried over from a prior quarter, shall be entered under the over-quota heading 9903.45.31. The maximum aggregate quantities described above do not include products of countries enumerated in subdivision (c) of this note.

History in the official tariff

In the tariff since the 2026 HTS Revision 16, in force from August 14, 2026.

Its description and rates have not changed since.

Official notices

Actions of the President, the USTR or U.S. Customs and Border Protection (CBP) that name this code.

In the tariff

  1. 9903.45.30Quartz 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 subchapter25%