8543.20.00.00
Signal generators
Electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof
Duty rates
Column 1 (General / MFN)
Free
Column 2 (Non-NTR)
35%
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)
9903.03.01
The duty provided in the applicable subheading + 10%
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.02
The duty provided in the applicable subheading
Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026
Effective from February 24, 2026 through July 24, 2026
9903.03.03
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.04
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.05
The duty provided in the applicable subheading
Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.06
The duty provided in the applicable subheading
Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.07
The duty provided in the applicable subheading
Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter
Applies to origin: CA
Effective from February 24, 2026 through July 24, 2026
9903.03.08
The duty provided in the applicable subheading
Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter
Applies to origin: MX
Effective from February 24, 2026 through July 24, 2026
9903.03.09
The duty provided in the applicable subheading
Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter
Applies to origin: CR, SV, GT, HN, NI, DO
Effective from February 24, 2026 through July 24, 2026
9903.03.10
The duty provided in the applicable subheading
Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering
Effective from February 24, 2026 through July 24, 2026
9903.03.11
The duty provided in the applicable subheading
Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds
Applies to origin: IL
Effective from February 24, 2026 through July 24, 2026
9903.88.01
LIST_1
The duty provided in the applicable subheading plus 25%
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Applies to origin: CN
Effective from July 6, 2018
Related CBP rulings
The tariff classification of parts for motors and sensors from various countries
There are four items at issue with this request, which are described as components for motors and sensors incorporated into aircraft: part number 2052-400-001, Rotor Slug; part number 1118-608-005, Primary Bobbin; part number 1004-111-049,
The tariff classification of parts of flight control surfaces from Canada and Mexico
There are five items at issue with this request, which are described as components for actuators and sensors incorporated into aircrafts. Each item is identified by part numbers H466B MOTOR ASSEMBLY, 1015-400-215 HOUSING, RESOLVER, H569 Gea
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There are three items at issue with this request, which are all identified as components for motors or sensors incorporated into a thermal management system within an aircraft. Each item is identified by part numbers H448B Motor/RVDT/Gearhe
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As an initial matter, we note that we will provide a tariff classification opinion on this issue, however we point out the below stipulations and limitations to our review. Based on the descriptions and supporting evidence provided with
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The merchandise at issue with this request is described as five versions of vertical and horizontal cages used specifically within physical vapor deposition (PVD) machines. The subject devices are individually identified below: Part number
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The tariff classification of an Isolated Phase Bus System from the Czech Republic
The merchandise under consideration is described as an Isolated Phase Bus (IPB) system. The subject system is comprised of a hollow aluminum tube held within an outer aluminum enclosure by cast-resin posts. The inner tube functions as an el
The tariff classification of a control module from Korea
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The tariff classification of displays from Taiwan
There are two items under consideration, a liquid crystal display (LCD) controller, item number 100852, and an LCD flat panel screen module, item number H103785. Both LCD modules are incorporated into ovens after importation. Item number 10
Other codes in heading 8543
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 8543.20.00.00 from each major US trading partner.
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