9903.18.06—Other
Published rate notation
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Active on 2026-08-30; no effective or expiration date is on file.
Tandom · Duty calculator
Check this provision by 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 9903.18.06 is a Chapter 99 tariff modification under Other. For a qualifying entry during this provision's effective period, the published notation modifies the duty treatment; the source instructions determine how that notation relates to the underlying base duty. Country scope is not on file in Tandom's catalog. Active on 2026-08-30; no effective or expiration date is on file.
Illustrative rate mechanics for a qualifying entry
This catalog record does not establish an additive rate relationship, so the page preserves the published notation without adding it to the base rate. Active on 2026-08-30; no effective or expiration date is on file. 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
Eligible to be imported under the sixth quota period specified in a notice issued by the United States Trade Representative in any 12 month period commencing on October 1 in any year
How to use this provision
Filing mechanics during the provision's effective period
Chapter 99 provision 9903.18.06 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 9903.18.06 on a separate line.
Target countries
Published country scope for entries during the provision's effective period
No country scope on file.
Related Chapter 99 codes(24)
Other Other provisions in Tandom's catalog
9903.04.05In original loaves (provided for in subheading 0406.40.44, 0406.40.54, or 0406.40.70)Suspended9903.04.10Other (provided for in subheading 0406.20.15, 0406.20.24, 0406.20.28, 0406.30.05, 0406.30.14, 0406.30.18, 0406.40.48, 0406.40.58, or 0406.40.70)Suspended9903.04.15Edam and Gouda cheeses (provided for in subheading 0406.20.44, 0406.20.48, 0406.30.44, 0406.30.48, 0406.90.16 or 0406.90.18)Suspended9903.04.20Cheeses and substitutes for cheeses, valued over 11.3¢ per kg, containing, or processed from, Italian-type cheeses, made from cow's milk, not in original loaves (Romano made from cow's milk, Reggiano, Parmesan, Provolone, Provoletti, Sbrinz and Goya) (provided for in subheading 0406.20.77, 0406.20.79, 0406.30.77, 0406.30.79, 0406.90.66 or 0406.90.68)SuspendedFrequently asked questions
What is HTS 9903.18.06?
HTS 9903.18.06 is a Chapter 99 tariff modification under Other, not a product classification. Its published scope describes when it can modify the duty treatment of a base 10-digit HTS code. Scope text: Eligible to be imported under the sixth quota period specified in a notice issued by the United States Trade Representative in any 12 month period commencing on October 1 in any year
What rate does HTS 9903.18.06 apply?
The published rate notation is see the rate card. Tandom's catalog does not identify this record as an additive rate, so consult the source instructions for how it relates to the base HTSUS rate. Use the Tandom calculator for a dated scenario.
What country scope is listed for HTS 9903.18.06?
9903.18.06 does not have a country scope on file in Tandom's catalog. See the source citation for the authoritative country list.
Is HTS 9903.18.06 currently active?
Learn more
Tandom guides relevant to this code
How Chapter 99 tariff layers stack on a single entry
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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How to calculate US import duties
A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
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