9903.81.99—Section 232 Steel Derivative
Published rate notation
The duty provided in the applicable subheading + 25%
Expired for entries on or after 2026-04-05.
Tandom · Duty calculator
Check a historical entry date
Pick a mapped 10-digit code and enter origin, value, and entry date. The calculator determines which Chapter 99 measures apply to that scenario; it does not force this provision into the result.
Plain-English explanation
HTS 9903.81.99 is a Chapter 99 steel derivative tariff modification under Section 232 Steel Derivative. For a qualifying entry during this provision's effective period, the published rate notation is the duty provided in the applicable subheading + 25%; the source instructions determine how that notation relates to the underlying base duty. Its published country scope lists GB. Expired for entries on or after 2026-04-05. Tandom maps 319 base HTS codes to this provision for catalog screening; a dated calculator scenario determines whether it applies.
Historical or scheduled rate mechanics
This catalog record does not establish an additive rate relationship, so the page preserves the published notation without adding it to the base rate. Expired for entries on or after 2026-04-05. The calculator checks the selected entry date and shipment facts before including any Chapter 99 provision.
Description
Authoritative scope text from the U.S. Harmonized Tariff Schedule
Except as provided in headings 9903.81.98 or 9903.81.92, derivative products of iron or steel of the United Kingdom, as specified in subdivisions (s) and (t) of note 16 to this subchapter, admitted to a U.S.foreign trade zone under ‘‘privileged foreign status’’ as defined by 19 CFR 146.41, prior to 12:01 a.m. eastern daylight time on June 4, 2025
How to use this provision
Filing mechanics during the provision's effective period
Chapter 99 provision 9903.81.99 is a tariff modification — it doesn't classify a product on its own. When a base 10-digit HTS code falls within this provision's scope during its effective period and a shipment matches the country and date conditions, the broker declares the base code at entry and follows the source instructions for reporting 9903.81.99 on a separate line.
Worked example
Published notation shown without assuming an additive rate
For an illustrative $10,000.00 entry during a period when this provision is in effect, assume an importer files 7216.91.00.10 (drilled, notched, punched or cambered) from a country in the published scope and all product conditions are met. The published rate notation is The duty provided in the applicable subheading + 25% and the base HTSUS rate is Free. The catalog does not carry a structured additive relationship for this provision, so this example does not add the displayed percentage to the base rate. Expired for entries on or after 2026-04-05.
No numeric total is shown because a published percentage alone does not establish whether the provision is additive, total, or otherwise conditional. Use the calculator for a dated scenario.
Opens the Tandom calculator with HTS 7216.91.00.10 pre-filled. Confirm the country, shipment value, and entry date to build an itemized duty and customs-fee estimate.
Target countries
Published country scope for entries during the provision's effective period
Mapped base HTS codes(319)
Showing the first 50 of 319 mapped codes (alphabetical).
7216.91.00.10Drilled, notched, punched or camberedFree7301.20.10.00Of iron or nonalloy steelFree7301.20.50.00Of alloy steelFree7302.30.00.00Switch blades, crossing frogs, point rods and other crossing piecesFree7302.90.90.00OtherFree7307.19.30.40Grooved-end fittings (including grooved couplings)5.6%7307.19.30.60Related Chapter 99 codes(24)
Other Section 232 Steel Derivative provisions in Tandom's catalog
9903.04.60Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter (100%; note 40(d): where the column 1 rate is below 100 percent the sum of the column 1 rate and this additional duty totals 100 percent). Effective 2026-09-29 generally; 2026-07-31 for companies listed in Proclamation 11020 Annex III (company-level — assert via importer review).Not yet in effect9903.04.62Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter (15%)Not yet in effect9903.04.63Patented pharmaceutical articles that are the product of the United Kingdom as defined in subdivisions (c) and (g) of U.S. note 40 to this subchapter (+0% per Rev 16; Proc 11020 cl. (3)(c) sets 10% reducing to zero to the extent required by the US-UK agreement)Not yet in effectFrequently asked questions
What is HTS 9903.81.99?
HTS 9903.81.99 is a Chapter 99 tariff modification under Section 232 Steel Derivative, not a product classification. Its published scope describes when it can modify the duty treatment of a base 10-digit HTS code. Scope text: Except as provided in headings 9903.81.98 or 9903.81.92, derivative products of iron or steel of the United Kingdom, as specified in subdivisions (s) and (t) of note 16 to this subchapter, admitted to a U.S.foreign trade zone under ‘‘privileged foreign status’’ as defined by 19 C…
What rate does HTS 9903.81.99 apply?
The provision's published rate notation is: "The duty provided in the applicable subheading + 25%" Tandom's catalog does not identify this record as an additive rate, so consult the source instructions for how the notation relates to the base HTSUS rate. Use the Tandom calculator for a dated scenario.
What country scope is listed for HTS 9903.81.99?
The published country scope for 9903.81.99 lists: GB.
Is HTS 9903.81.99 currently active?
Source
Authoritative citation that established this provision
;proc11021-supersede-2026-04-21
Learn more
Tandom guides relevant to this code
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