What does HTS Chapter 03 cover?

Chapter 03 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Fish and crustaceans, molluscs and other aquatic invertebrates. It sits within Section I: Live Animals; Animal Products. Tandom's catalog lists all 562 10-digit statistical lines and 9 4-digit headings in this chapter.

What is the typical U.S. duty rate for Chapter 03 imports?

General (Column 1) duty rates for ad-valorem lines range from 0.5% to 15% (median 5%); roughly 93% of lines enter duty-free. Use the calculator linked from each code page to build a date- and origin-specific import-duty estimate, including applicable Chapter 99 layers and customs fees. Potential AD/CVD exposure is flagged separately and is not included in the estimate.

How are Section 301 and Section 232 measures represented in the HTSUS?

Section 301 and Section 232 measures are represented by Chapter 99 provisions. A catalog link between a provision and a 10-digit line is a screening flag, not a claim that the measure applies; origin, product and material facts, claims, and entry date control the result.

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 03?

AD/CVD orders are issued at the case level by the Department of Commerce against specific products from specific countries. Use the product's base HTS code to find potentially relevant AD/CVD order flags, then read the written order scope; an HTS match alone does not determine coverage.

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Section I: Live Animals; Animal Products

Chapter 03: Fish and crustaceans, molluscs and other aquatic invertebrates

Chapter 03 of the U.S. Harmonized Tariff Schedule covers Fish and crustaceans, molluscs and other aquatic invertebrates and sits within Section I: Live Animals; Animal Products.

About Chapter 03

Chapter 03 contains 562 10-digit statistical lines grouped under 9 4-digit headings. Brokers, importers, and customs counsel use these codes to declare fish and crustaceans, molluscs and other aquatic invertebrates on entry summaries (CBP Form 7501) and to look up the published Column 1, Special, and Column 2 rate notation.

General (Column 1) duty rates for ad-valorem lines in Chapter 3 range from 0.5% to 15%, with a median of 5%. About 91% of the chapter's lines (511 of 562) enter duty-free under the general rate. Special-rate notation (including USMCA, KORUS, AGOA, and GSP when authorized) and Chapter 99 measures can modify these base rates for qualifying shipments.

Product-code pages link into the Tandom Tariff Calculator with the base HTS code prefilled. Chapter 99 provision pages instead show mapped base codes and send you to a dated calculator scenario, which determines whether a measure applies from the entry facts. Tandom's data refreshes daily from USITC HTSUS, CBP CSMS, the Federal Register, and the Department of Commerce — the same authoritative sources the trade community files against.

Code	Description	General	Column 2	Special	Units
0301.11.00	·Freshwater	Free	Free	—	—
0301.11.00.10	··Koi (common) carp (Cyprinus carpio)	Free	Free	—	kg
0301.11.00.20	··Goldfish( Carassius auratus), Crucian carp (Carassius carassius)	Free	Free	—	kg
0301.11.00.90	··Other	Free	Free	—	kg
0301.19.00.00	·Other	Free	Free	—	kg
0301.91.00.00	·Trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster)	Free	Free	—	kg
0301.92.00.00	·Eels (Anguilla spp.)	Free	Free	—	kg
0301.93.02	·Carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.)	Free	Free	—	—
0301.93.02.10	··Grass carp (Ctenopharyngodon idellus), silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis)	Free	Free	—	kg
0301.93.02.90	··Other	Free	Free	—	kg
0301.94.01.00	·Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)	Free	Free	—	kg
0301.95.00.00	·Southern Bluefin tunas (Thunnus maccoyii)	Free	Free	—	kg
0301.99.03	·Other	Free	Free	—	—
0301.99.03.10	··Tench (Tinca tinca), sheatfish (Silurus glanis)	Free	Free	—	kg
0301.99.03.15	··Bighead carp (Aristichthys nobilis)	Free	Free	—	kg
0301.99.03.90	··Other	Free	Free	—	kg

Code	Description	General	Column 2	Special	Units
0302.11.00	·Trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster)	Free	2.2¢/kg	—	—
0302.11.00.10	··Rainbow trout (Salmo gairdneri), farmed

Code	Description	General	Column 2	Special	Units
0303.11.00.00	·Sockeye salmon (red salmon) (Oncorhynchus nerka)	Free	4.4¢/kg	—	kg
0303.12.00	·Other Pacific salmon (Oncorhynchus gorbuscha, Oncorhynchus keta, Oncorhynchus tschawytscha, Oncorhynchus kisutch, Oncorhynchus masou and Oncorhynchus rhodurus)

Code	Description	General	Column 2	Special	Units
0304.31.00.00	·Tilapias (Oreochromis spp.)	Free	5.5¢/kg	—	kg
0304.32.00	·Catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.)	Free

Code	Description	General	Column 2	Special	Units
0305.20	Livers, roes and milt of fish, dried, smoked, salted or in brine:	—	—	—	—
0305.20.20.00	·Sturgeon roe	7.5%

Chapter 03: Fish and crustaceans, molluscs and other aquatic invertebrates

`0301`Live fish:

`0302`Fish, fresh or chilled, excluding fish fillets and other fish meat of heading 0304:

`0303`Fish, frozen, excluding fish fillets and other fish meat of heading 0304:

`0304`Fish fillets and other fish meat (whether or not minced), fresh, chilled or frozen:

`0305`Fish, dried, salted or in brine; smoked fish, whether or not cooked before or during the smoking process:

`0307`Molluscs, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked molluscs, whether in shell or not, whether or not cooked before or during the smoking process:

`0308`Aquatic invertebrates other than crustaceans and molluscs, live, fresh, chilled, frozen, dried, salted or in brine; smoked aquatic invertebrates other than crustaceans and molluscs, whether or not cooked before or during the smoking process:

`0309`Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption:

Frequently asked questions

What does HTS Chapter 03 cover?

What is the typical U.S. duty rate for Chapter 03 imports?

How are Section 301 and Section 232 measures represented in the HTSUS?

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 03?

Code	Description	General	Column 2	Special	Units
0306.11.00	·Rock lobster and other sea crawfish (Palinurus spp., Panulirus spp., Jasus spp.)	Free	Free	—	—
0306.11.00.10

Code	Description	General	Column 2	Special	Units
0307.11.00	·Live, fresh or chilled	Free	Free	—	—
0307.11.00.20	··Seed oysters	Free

Code	Description	General	Column 2	Special	Units
0308.11.00.00	·Live, fresh or chilled	Free	Free	—	kg
0308.12.00.00	·Frozen

Code	Description	General	Column 2	Special	Units
0309.10	Of fish:	—	—	—	—
0309.10.05.00	·In bulk or in immediate containers weighing with their contents over 6.8 kg each	Free

0301Live fish:

0302Fish, fresh or chilled, excluding fish fillets and other fish meat of heading 0304:

0303Fish, frozen, excluding fish fillets and other fish meat of heading 0304:

0304Fish fillets and other fish meat (whether or not minced), fresh, chilled or frozen:

0305Fish, dried, salted or in brine; smoked fish, whether or not cooked before or during the smoking process:

0307Molluscs, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked molluscs, whether in shell or not, whether or not cooked before or during the smoking process:

0308Aquatic invertebrates other than crustaceans and molluscs, live, fresh, chilled, frozen, dried, salted or in brine; smoked aquatic invertebrates other than crustaceans and molluscs, whether or not cooked before or during the smoking process:

0309Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption:

Frequently asked questions

What does HTS Chapter 03 cover?

What is the typical U.S. duty rate for Chapter 03 imports?

How are Section 301 and Section 232 measures represented in the HTSUS?

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 03?

`0301`Live fish:

`0302`Fish, fresh or chilled, excluding fish fillets and other fish meat of heading 0304:

`0303`Fish, frozen, excluding fish fillets and other fish meat of heading 0304:

`0304`Fish fillets and other fish meat (whether or not minced), fresh, chilled or frozen:

`0305`Fish, dried, salted or in brine; smoked fish, whether or not cooked before or during the smoking process:

`0307`Molluscs, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked molluscs, whether in shell or not, whether or not cooked before or during the smoking process:

`0308`Aquatic invertebrates other than crustaceans and molluscs, live, fresh, chilled, frozen, dried, salted or in brine; smoked aquatic invertebrates other than crustaceans and molluscs, whether or not cooked before or during the smoking process:

`0309`Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption: