Official article description
Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) 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)(vi)–(viii) and (xi); the enumerated scope lives in that note, not in the description above.
How this heading is treated
- Treatment: Additional duty on top of the ordinary subheading rate. Column 1 General reads “The duty provided in the applicable subheading + 25%”, Column 1 Special reads “The duty provided in the applicable subheading + 25%”, and Column 2 reads “The duty provided in the applicable subheading + 25%”.
- Metals reached: Copper articles and aluminum/steel derivatives.
- Origin condition: Any origin except the Russian Federation, which is reached by 9903.82.16.
- Controlling note: U.S. note 16(c)(vi)–(viii) and (xi), in the legal notes to subchapter III of Chapter 99.
A residual heading with the longest exclusion list in the range
9903.82.09 excludes nine other headings by number, more than any other line in the 9903.82 range, and that shape tells you how to use it: it is a residual, reached only after the narrower lines have been ruled out. Seven of the nine — 9903.82.20 through 9903.82.26 — are the rate-threshold and named-country lines that either convert the ordinary Column 1 rate into a flat Chapter 99 rate of 10 or 15 percent or leave it unchanged when it already meets the threshold.
For a low ordinary rate, the exclusion list is where the money is
Because those seven headings replace rather than add, an article with a low ordinary Column 1 rate is usually cheaper on one of them than at plus 25 percent here. Working the list is therefore a duty decision, not a paperwork step. The remaining two exclusions are origin-specific: 9903.82.16 for Russian copper and derivative steel at plus 25 percent, and 9903.85.68 for derivative aluminum of Russian metal at plus 200 percent.
Headings that displace this one
The article description opens with an “Except as provided for in headings” clause, so 9 headings take precedence over 9903.82.09. Rule them out before applying the treatment above.
9903.82.16— Russian copper and derivative steel — plus 25%9903.82.20— Note 16(j) derivative steel — plus 25%9903.82.21— Note 16(j) derivative steel — no change9903.82.22— Named-origin derivative steel — flat 15%9903.82.23— Copper and derivatives under a 10% rate — flat 10%9903.82.24— Copper and derivatives at or above a 10% rate — no change9903.82.25— Copper and derivatives under a 15% rate — flat 15%9903.82.26— Copper and derivatives at or above a 15% rate — no change9903.85.68— outside the 9903.82 range; read it in the official USITC lookup
Tariff Sentinel publishes a page per heading only for the 26 9903.82 headings read directly against 2026 HTS Revision 15. The heading 9903.85.68 above sits outside that range, so it is cited to the official lookup rather than summarised here.
Frequently asked questions
Why does 9903.82.09 exclude so many headings?
Because it is the residual line for its subdivisions. Nine headings displace it: 9903.82.16 for Russian copper and derivative steel, 9903.82.20 through 9903.82.26 for the note 16(e), (f), (j) and (k) rate-threshold and named-origin cases, and 9903.85.68 for derivative aluminum of Russian metal. Rule those out first — several produce a lower duty than plus 25 percent for an article with a low ordinary Column 1 rate.
Is the 25 percent under 9903.82.09 additional or a replacement rate?
Additional. All three columns read “The duty provided in the applicable subheading + 25%” in 2026 HTS Revision 15, read August 7, 2026, so the ordinary rate stays and 25 percent is added to it. That is the structural difference from 9903.82.23 and 9903.82.25, which replace the Column 1 rate with a flat Chapter 99 rate of 10 or 15 percent.
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)(vi)–(viii) and (xi) 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 9903.82.09 (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.