HS code 0303.66: Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99, hake (Merluccius spp., Urophycis spp.)

Last updated 11 October 2026

Landed cost with 0303.66 Classify a product

Key facts

HS code: 0303.66
Covers: Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99, hake (Merluccius spp., Urophycis spp.)
Heading: 03.03: Fish, frozen, excluding fish fillets and other fish meat of heading 0304
Chapter: 03: Fish and crustaceans, molluscs and other aquatic invertebrates
Edition: HS2022
Duty in the United States: See its 1 line

Summary

HS code 0303.66 covers fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99, hake (Merluccius spp., Urophycis spp.). It sits in heading 03.03 (fish, frozen, excluding fish fillets and other fish meat of heading 0304) in chapter 03 (fish and crustaceans, molluscs and other aquatic invertebrates). Other goods of heading 03.03 are classified under 0303.11 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, sockeye salmon (red salmon) (Oncorhynchus nerka)), 0303.12 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, other Pacific salmon (Oncorhynchus gorbuscha, Oncorhynchus keta, Oncorhynchus tschawytscha, Oncorhynchus kisutch, Oncorhynchus masou and Oncorhynchus rhodurus)), 0303.13 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, atlantic salmon (Salmo salar) and Danube salmon (Hucho hucho)), 0303.14 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache or Oncorhynchus chrysogaster)) and 39 others. National tariff lines under 0303.66 are live on border.bot for the United States (1 line, also used by 1 other country).

What this code covers

The legal text of the subheading is “Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Hake (Merluccius spp., Urophycis spp.)”, read under “Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99”, in HS2022.

What it doesn’t cover

Other goods of heading 03.03 are classified under 0303.11 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, sockeye salmon (red salmon) (Oncorhynchus nerka)), 0303.12 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, other Pacific salmon (Oncorhynchus gorbuscha, Oncorhynchus keta, Oncorhynchus tschawytscha, Oncorhynchus kisutch, Oncorhynchus masou and Oncorhynchus rhodurus)), 0303.13 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, atlantic salmon (Salmo salar) and Danube salmon (Hucho hucho)), 0303.14 (salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache or Oncorhynchus chrysogaster)) and 39 others.

0303.11Salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Sockeye salmon (red salmon) (Oncorhynchus nerka)
0303.12Salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Other Pacific salmon (Oncorhynchus gorbuscha, Oncorhynchus keta, Oncorhynchus tschawytscha, Oncorhynchus kisutch, Oncorhynchus masou and Oncorhynchus rhodurus)
0303.13Salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Atlantic salmon (Salmo salar) and Danube salmon (Hucho hucho)
0303.14Salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster)
0303.19Salmonidae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.23Tilapias (Oreochromis spp.), catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.), carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.), eels (Anguilla spp.), Nile perch (Lates niloticus) and snakeheads (Channa spp.), excluding edible fish offal of subheadings 0303 91 to 0303 99: Tilapias (Oreochromis spp.)
0303.24Tilapias (Oreochromis spp.), catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.), carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.), eels (Anguilla spp.), Nile perch (Lates niloticus) and snakeheads (Channa spp.), excluding edible fish offal of subheadings 0303 91 to 0303 99: Catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.)
0303.25Tilapias (Oreochromis spp.), catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.), carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.), eels (Anguilla spp.), Nile perch (Lates niloticus) and snakeheads (Channa spp.), excluding edible fish offal of subheadings 0303 91 to 0303 99: Carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.)
0303.26Tilapias (Oreochromis spp.), catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.), carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.), eels (Anguilla spp.), Nile perch (Lates niloticus) and snakeheads (Channa spp.), excluding edible fish offal of subheadings 0303 91 to 0303 99: Eels (Anguilla spp.)
0303.29Tilapias (Oreochromis spp.), catfish (Pangasius spp., Silurus spp., Clarias spp., Ictalurus spp.), carp (Cyprinus spp., Carassius spp., Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus, Catla catla, Labeo spp., Osteochilus hasselti, Leptobarbus hoeveni, Megalobrama spp.), eels (Anguilla spp.), Nile perch (Lates niloticus) and snakeheads (Channa spp.), excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.31Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis)
0303.32Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Plaice (Pleuronectes platessa)
0303.33Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Sole (Solea spp.)
0303.34Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Turbots (Psetta maxima)
0303.39Flat fish (Pleuronectidae, Bothidae, Cynoglossidae, Soleidae, Scophthalmidae and Citharidae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.41Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Albacore or longfinned tunas (Thunnus alalunga)
0303.42Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Yellowfin tunas (Thunnus albacares)
0303.43Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis)
0303.44Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Bigeye tunas (Thunnus obesus)
0303.45Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)
0303.46Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Southern bluefin tunas (Thunnus maccoyii)
0303.49Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.51Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Herrings (Clupea harengus, Clupea pallasii)
0303.53Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus)
0303.54Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus)
0303.55Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Jack and horse mackerel (Trachurus spp.)
0303.56Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Cobia (Rachycentron canadum)
0303.57Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Swordfish (Xiphias gladius)
0303.59Herrings (Clupea harengus, Clupea pallasii), anchovies (Engraulis spp.), sardines (Sardina pilchardus, Sardinops spp.), sardinella (Sardinella spp.), brisling or sprats (Sprattus sprattus), mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus), Indian mackerels (Rastrelliger spp.), seerfishes (Scomberomorus spp.), jack and horse mackerel (Trachurus spp.), jacks, crevalles (Caranx spp.), cobia (Rachycentron canadum), silver pomfrets (Pampus spp.), Pacific saury (Cololabis saira), scads (Decapterus spp.), capelin (Mallotus villosus), swordfish (Xiphias gladius), Kawakawa (Euthynnus affinis), bonitos (Sarda spp.), marlins, sailfishes, spearfish (Istiophoridae), excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.63Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Cod (Gadus morhua, Gadus ogac, Gadus macrocephalus)
0303.64Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Haddock (Melanogrammus aeglefinus)
0303.65Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Coalfish (Pollachius virens)
0303.67Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Alaska Pollock (Theragra chalcogramma)
0303.68Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Blue whitings (Micromesistius poutassou, Micromesistius australis)
0303.69Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.81Other fish, excluding edible fish offal of subheadings 0303 91 to 0303 99: Dogfish and other sharks
0303.82Other fish, excluding edible fish offal of subheadings 0303 91 to 0303 99: Rays and skates (Rajidae)
0303.83Other fish, excluding edible fish offal of subheadings 0303 91 to 0303 99: Toothfish (Dissostichus spp.)
0303.84Other fish, excluding edible fish offal of subheadings 0303 91 to 0303 99: Seabass (Dicentrarchus spp.)
0303.89Other fish, excluding edible fish offal of subheadings 0303 91 to 0303 99: Other
0303.91Livers, roes, milt, fish fins, heads, tails, maws and other edible fish offal: Livers, roes and milt
0303.92Livers, roes, milt, fish fins, heads, tails, maws and other edible fish offal: Shark fins
0303.99Livers, roes, milt, fish fins, heads, tails, maws and other edible fish offal: Other

How it is structured

0303.66 is a six-digit subheading. Its first two digits, 03, are the chapter; the first four, 0303, are heading 03.03; the last two, 66, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

Chapter 03: Fish and crustaceans, molluscs and other aquatic invertebrates
Heading 03.03: Fish, frozen, excluding fish fillets and other fish meat of heading 0304
Within the heading: Fish of the families Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae and Muraenolepididae, excluding edible fish offal of subheadings 0303 91 to 0303 99
Subheading 0303.66: Hake (Merluccius spp., Urophycis spp.)

In other countries

National tariff lines under 0303.66 are live on border.bot for the United States (1 line, also used by 1 other country).

United States1 line, used by 1 other country

Frequently asked questions

What does HS code 0303.66 cover?

Which heading and chapter is HS code 0303.66 in?

HS code 0303.66 is in heading 03.03 (fish, frozen, excluding fish fillets and other fish meat of heading 0304) in chapter 03 (fish and crustaceans, molluscs and other aquatic invertebrates).

Where are goods of heading 03.03 classified when 0303.66 doesn’t fit?

Which countries’ tariffs list national lines under HS code 0303.66?

National tariff lines under 0303.66 are live on border.bot for the United States (1 line, also used by 1 other country).

Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

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