HTS 9032.90.21Automatic regulating or controlling instruments and apparatus; parts and accessories thereof:Parts and accessories: Of automatic voltage and voltage-current regulators: Designed for use in a 6, 12 or 24 V system

What that translates to:Parts for voltage regulators of 6, 12 or 24 V systems

Also written 90329021 or 9032.90.2100. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Country of origin

Parts for voltage regulators of 6, 12 or 24 V systems (HTS 9032.90.21) from China owe 38.6% in total duties as of Oct 1, 2026: a 1.1% regular duty plus a 12.5% forced-labor tariff (Section 301) and a 25% China tariff (Section 301).

Total duty rate38.6%That's $3,860 on a $10,000 shipment.

Forced-labor tariffSection 301, since Jul 24, 202612.5%

China tariffSection 301, since Jul 6, 201825%

Regular dutyBase rate (MFN) in the tariff schedule1.1%

Total duty38.6%

The forced-labor tariff may not apply. The legal text: “articles that are 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, that otherwise meet the criteria of general note 6 of the HTSUS” (HTS 9903.05.88).

Court status: Challenged at the U.S. Court of International Trade in In re Section 301 Forced Labor Cases, Court No. 26-03555-3JP, before a three-judge panel. The plaintiffs, Learning Resources and others, have moved for judgment on the agency record, arguing that the action (91 FR 47318) exceeds USTR's statutory authority, is arbitrary and capricious, and is pretextual; 25 states, plaintiffs in Court No. 26-cv-03467-3JP, support them as amici (brief filed Sep 11, 2026). No ruling as of Oct 1, 2026, so the rate is unchanged.

Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026); USTR, Notice of Actions in Section 301 Investigations (forced labor), 91 FR 47318, Jul 28, 2026; HTS 9903.05.31; USTR, Notice of Action and Request for Public Comment Concerning Proposed Determination of Action Pursuant to Section 301 (List 1, 25% from Jul 6, 2018), 83 FR 28710, Jun 20, 2018; HTS 9903.88.01.

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Official description

Automatic regulating or controlling instruments and apparatus; parts and accessories thereof: Parts and accessories: Of automatic voltage and voltage-current regulators: Designed for use in a 6, 12 or 24 V system

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

9032.90.2100 (9032902100)Designed for use in a 6, 12 or 24 V system · reported in kg

What changed for this code

Jul 24, 2026Forced-labor tariffs start on imports from 60 economies (Section 301)
Jul 22, 202625% Section 301 tariff on products of Brazil starts
Jan 1, 2026Section 301 tariff on Nicaragua starts at 0%, set to rise to 10% in 2027 and 15% in 2028

Questions about HTS 9032.90.21

What is the duty rate for HTS 9032.90.21?

The regular (column 1 general) rate printed in the tariff schedule is 1.1%. Goods from China owe 38.6% in total as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 9032.90.21 subject to Section 301 tariffs?

Yes, for goods from 85 countries and territories as of Oct 1, 2026, including Algeria, Angola, Argentina, Australia, Austria. Choose a country above to see the rate and any exemptions.

Is HTS 9032.90.21 subject to Section 232 tariffs?

No Section 232 tariff applies to HTS 9032.90.21 as of Oct 1, 2026, from any country of origin.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.