Official article description
Certain articles of aluminum, as provided for in subdivision (c)(i) and subdivision (i) of U.S. note 16 to this subchapter
Transcribed verbatim from the live USITC export for 2026 HTS Revision 15 on Aug 7, 2026. The heading text points to U.S. note 16(c)(i) and (i); the enumerated scope lives in that note, not in the description above.
How this heading is treated
- Treatment: Additional duty in the Special subcolumn only. Column 1 General reads “no change”, Column 1 Special reads “The duty provided in the applicable subheading + 25%”, and Column 2 reads “no change”.
- Metals reached: Certain aluminum articles.
- Origin condition: Any origin, but only where a preference program is claimed.
- Controlling note: U.S. note 16(c)(i) and (i), in the legal notes to subchapter III of Chapter 99.
The aluminum twin of a Special-column duty
9903.82.19 mirrors 9903.82.18 for aluminum: the additional 25 percent lands in the Special subcolumn while Column 1 General and Column 2 read “no change”. Because Special rates are claimed rather than default, the heading only bites when a preference program is being used for the entry, which means its cost is invisible in any landed-cost model built on the general rate.
Two different lettered subdivisions, not a variant of one
The subdivision citations separate the pair: steel comes in through (c)(iii) and (h), aluminum through (c)(i) and (i). The second letter in each pair is a distinct subdivision of U.S. note 16, not a sub-part of the first, and subdivision (i) is easy to misread as the roman numeral in (c)(i) beside it. Read the Special subcolumn of the ordinary subheading for the program symbol and the rate that carries it, then read note 16(i), before assuming a preference claim survives Section 232.
Frequently asked questions
Which U.S. note 16 subdivisions does 9903.82.19 cite?
Subdivision (c)(i) and subdivision (i), as read from the live USITC export for 2026 HTS Revision 15 on August 7, 2026. Its steel counterpart 9903.82.18 cites subdivisions (c)(iii) and (h) instead. The lettered subdivisions are separate provisions of note 16, so read each one — and note that subdivision (i) is easy to misread as the roman numeral in (c)(i) beside it.
Does 9903.82.19 affect a duty-free preference claim on aluminum?
It can. The heading places the applicable subheading's duty plus 25 percent in the Special subcolumn, which is the column an entry reaches only by claiming a preference program listed for the ordinary subheading. Column 1 General and Column 2 read “no change”. Confirm the program symbol, the specific rate that carries it, and note 16(i) before relying on the preference.
How to use this page
A Chapter 99 heading is reported alongside an ordinary Chapter 1–97 classification, never instead of it, so this page is the second half of a two-part answer. Settle the ordinary classification and the country of origin first, then read U.S. note 16(c)(i) and (i) against the article, then select the heading. Where a rate threshold is involved, the test runs on the ad valorem equivalent for that entry, which makes it value-dependent rather than a fixed attribute of the part.
For the full 9903.82 map in one table, see Section 232 HTS Codes List & 9903.82 Duty Map, which lists every heading in the range with its treatment and cited subdivision. To be told when the range changes, see Section 232 steel and aluminum tariff alerts. For how a Chapter 99 overlay sits on top of the ordinary duty columns, see how U.S. import tariff layers fit together.
Sources verified for this heading
- USITC Harmonized Tariff Schedule lookup for heading 9903.82.19 (retrieved Aug 7, 2026)
- USITC Harmonized Tariff Schedule — live export for Section 232 headings 9903.82.01–9903.82.26 (retrieved Aug 7, 2026)
- USITC Harmonized Tariff Schedule — completeness probe 9903.82.01–9903.82.99, returning exactly 26 rows (retrieved Aug 7, 2026)
- USITC current-release endpoint — 2026 HTS Revision 15 (retrieved Aug 7, 2026)
- CBP CSMS 68855869 — Further adjusting Section 232 tariffs for aluminum, steel, and copper (retrieved Jul 29, 2026)
- GovInfo PDF / Federal Register 91 FR 34085 — Proclamation 11032 and annexes (retrieved Jul 29, 2026)
Last verified: Aug 7, 2026. The article description and all three duty columns above were read from the live USITC export for 2026 HTS Revision 15 on that date. USITC published four revisions in fourteen days during 2026, so confirm the controlling heading text, the cited U.S. note subdivision, and your entry date in the official source before filing. Informational estimates only. Verify with a licensed customs broker, trade counsel, or CBP ruling before filing.