Official article description
Articles of copper and derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 equal to or greater than 10 percent, as provided for in subdivisions (e) and (k) 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(e) and (k); the enumerated scope lives in that note, not in the description above.
How this heading is treated
- Treatment: No change to the ordinary subheading rate. Column 1 General reads “No change”, Column 1 Special reads “No change”, and Column 2 reads “No change”.
- Metals reached: Copper articles and aluminum/steel derivatives.
- Origin condition: Any origin.
- Controlling note: U.S. note 16(e) and (k), in the legal notes to subchapter III of Chapter 99.
Reporting a passed threshold, with a value-dependent test
9903.82.24 is the upper half of the subdivisions (e) and (k) pair: the article is a covered article of copper or a derivative aluminum or steel article, and its ad valorem or ad valorem equivalent Column 1 rate already equals or exceeds 10 percent, so the flat 10 percent in 9903.82.23 would not raise it. Reporting the heading is therefore a claim about the rate, not a statement that Section 232 does not reach the article.
Keep the conversion with the entry
Because the test runs on the ad valorem equivalent, a specific or compound ordinary rate has to be converted per entry against the entered value, which means the same part can qualify here on one entry and fall to 9903.82.23 on another. The 15 percent version of the same test lives at 9903.82.25 and 9903.82.26 under subdivisions (f) and (k), so an article whose rate sits between 10 and 15 percent clears this threshold and fails that one.
Frequently asked questions
What is the difference between 9903.82.24 and 9903.82.26?
The threshold and the subdivision. 9903.82.24 sits in the subdivisions (e) and (k) pair and reports an ad valorem equivalent Column 1 rate of 10 percent or more; 9903.82.26 sits in the subdivisions (f) and (k) pair and reports 15 percent or more. Both read “No change” in all three columns in 2026 HTS Revision 15, read August 7, 2026, but they rest on different notes and different arithmetic.
Does 9903.82.24 need supporting documentation if no duty is added?
Yes. Reporting the heading is a claim that the ad valorem or ad valorem equivalent Column 1 rate is 10 percent or more for that entry, which for a specific or compound rate depends on entered unit value. Keep the conversion and the note 16(e) and (k) reading with the entry rather than treating the heading as a static attribute of the part.
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(e) and (k) 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 9903.82.24 (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.