1605.56—Clams, cockles and arkshells
General duty rate
Free – 10%
Across 6 10-digit lines; pick a line below for the exact rate
Coverage on this page
Up one level: 1605 — Crustaceans, molluscs and other aquatic invertebrates, prepared or preserved: (heading)
Plain-English explanation
HTS 1605.56 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Clams, cockles and arkshells. It sits in Chapter 16: Preparations of meat, fish, crustaceans, molluscs or other aquatic invertebrates, Section IV: Prepared Foodstuffs; Beverages, Spirits, Vinegar; Tobacco and rolls up 6 10-digit statistical lines, with general duty rates ranging from Free to 10%. 1 Chapter 99 tariff modification currently touches one or more lines under this subheading.
10-digit lines under 1605.56(6)
Pick a line to view full rate detail and compute landed duty
1605.56.05.00Products containing fish meat; prepared mealsFree1605.56.10.00Razor clams (Siliqua patula)Free1605.56.15.00Boiled clams, whether whole, minced or chopped, and whether or not salted, but not otherwise prepared or preserved, in immediate containers, the contents of each container not exceeding 680 grams gross weight10%1605.56.20.00OtherFree1605.56.30.00OtherFree1605.56.60.00OtherFreeTariff modifications(1)
Chapter 99 overlays touching one or more lines under 1605.56
| Code | Authority | Rate |
|---|---|---|
| 9903.88.70 | section_301 | The duty provided in the applicable subheading |
Frequently asked questions
What does HTS 1605.56 cover?
HTS 1605.56 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Clams, cockles and arkshells. It belongs to Chapter 16 and rolls up 6 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 1605.56?
General (Column 1) duty rates for the 10-digit lines under HTS 1605.56 range from Free to 10%. The exact rate depends on the specific 10-digit statistical line — pick a line below to see its full rate detail.
How do I find the right 10-digit line under HTS 1605.56?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 1605.56 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Are there AD/CVD orders affecting HTS 1605.56?
No active AD/CVD (antidumping or countervailing duty) orders currently flag any line under HTS 1605.56 in Tandom's catalog. Tandom monitors Federal Register notices daily; any new orders will appear here within 24h of publication.
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.
Open resource
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.
Open resource
Section 301 China tariff exclusions in 2026
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
Open resource
Wire the Tandom Duty Calculator API into a TMS or broker software
Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
Open resource
Section 232 steel, aluminum, and copper duties in 2026
What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
Open resource
Trade compliance APIs in broker workflows
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
Open resource