8529.90.04.00—Parts suitable for use solely or principally with the apparatus of headings 8524 to 8528, tunersGeneral
Free
Units
No.
Column 2
35%
Supplier development
Tandom’s paid supplier-development service helps industrial buyers identify and evaluate alternative manufacturers, compare quotes, qualify samples, and prepare a first order. Buyers retain supplier approval and all customs and compliance decisions.
Exporting to the United States
Tandom’s Americas Desk works with manufacturers outside the United States on the commercial side of entering it: buyer research, targeted outreach, qualifying the opportunities that come back, quote support, and follow-up.
Special
—
HTS 8529.90.04.00 is the U.S. Harmonized Tariff Schedule classification for Parts suitable for use solely or principally with the apparatus of headings 8524 to 8528, tuners. It's a 10-digit statistical line in Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers; television image and sound recorders and reproducers, and parts and accessories of such articles, Section XVI: Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles, used by U.S. Customs and Border Protection to determine the duty rate at entry. 2 Chapter 99 flags link to this code (2 active). A Chapter 99 flag is not a shipment-level determination; origin, product facts, claims, and entry date control whether a provision applies.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 flags linked to this code; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.88.01 | section_301Active | The duty provided in the applicable subheading plus 25% |
| 9903.88.15 | section_301Active | The duty provided in the applicable subheading + 7.5% |
HTS 8529.90.04.00 is the U.S. Harmonized Tariff Schedule classification for Parts suitable for use solely or principally with the apparatus of headings 8524 to 8528, tuners. It belongs to Chapter 85 of the HTSUS.
The general (Column 1) duty rate for HTS 8529.90.04.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 8529.90.04.00 is 35%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Belarus, Cuba, North Korea, and Russia).
Tandom links section_301 provision 9903.88.01 to HTS 8529.90.04.00. Its published rate notation is The duty provided in the applicable subheading plus 25%, and its status on 2026-09-25 is active. 1 additional Chapter 99 flag also link to this code. A flag is not a shipment-level determination; check origin, product facts, claims, and entry date.
Tandom's current catalog view links no potentially relevant AD/CVD order flags to HTS 8529.90.04.00. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.
Tandom guides relevant to this code
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
Open resource
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
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Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
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What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
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