HTS heading 0306 · Chapter 03, Fish, crustaceans and molluscs
US imports of Crustaceans, whether in shell or not, live, fresh, chilled
Crustaceans, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked crustaceans, whether in shell or not, whether or not cooked before or during the smoking process; crustaceans, in shell, cooked by steaming or by boiling in water, whether or not chilled, frozen, dried, salted or in brine
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
US imports under HTS 0306 at a glance
Between March and July 2026, US importers entered $2.85 billion of crustaceans, whether in shell or not, live, fresh, chilled under HTS heading 0306, from 36 of the 55 origin countries covered here and across 58 ten-digit tariff lines — roughly $570 million a month of customs value under a single four-digit heading.
The heading belongs to chapter 03, fish, crustaceans and molluscs. Classification disputes in this range usually turn on the six-digit subheading, which is where the rates start to diverge.
Top origin countries by share of HTS 0306
Origin countries: value, share and duty paid
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| Canada | $1.57 billion | 55.2% | 0.1% | 10% | $0.01 | |
| India | $641 million | 22.5% | 94% | 10% | $9.41 | Duty on 0306.17.00 India lane |
| Indonesia | $263 million | 9.2% | 96.7% | 10% | $9.67 | Duty on 0306.17.00 Indonesia lane |
| Argentina | $98.8 million | 3.5% | 98.7% | 10% | $9.87 | Duty on 0306.17.00 |
| Vietnam | $82.6 million | 2.9% | 94.3% | 9.99% | $9.43 | Duty on 0306.17.00 Vietnam lane |
| Mexico | $71.0 million | 2.5% | 0% | 10% | $0.00 | |
| Thailand | $43.5 million | 1.5% | 98.8% | 9.84% | $9.72 | Duty on 0306.17.00 Thailand lane |
| Japan | $17.1 million | 0.6% | 99.8% | 7.74% | $7.72 | Duty on 0306.14.40 |
| South Africa | $12.3 million | 0.4% | 76.6% | 8.53% | $6.53 | Duty on 0306.11.00 |
| Bangladesh | $10.2 million | 0.4% | 97.1% | 10% | $9.71 | Duty on 0306.17.00 Bangladesh lane |
| Peru | $9.1 million | 0.3% | 95.6% | 10.08% | $9.63 | Duty on 0306.17.00 |
| Honduras | $8.0 million | 0.3% | 79% | 10% | $7.90 | Duty on 0306.11.00 |
| Australia | $3.6 million | 0.1% | 85% | 6.04% | $5.13 | Duty on 0306.11.00 |
| Brazil | $3.0 million | 0.1% | 100% | 3.89% | $3.89 | Duty on 0306.11.00 Brazil lane |
| South Korea | $2.6 million | 0.1% | 99.4% | 7.87% | $7.82 | Duty on 0306.14.20 |
Who exports crustaceans, whether in shell or not, live, fresh, chilled to the United States
Canada supplies 55.2% of everything entered under this heading — $1.57 billion over the five months — which makes this a single-source market in practice. India is a distant second at 22.5%, then Indonesia at 9.2%. When one origin carries this much of a heading, a tariff action aimed at that country moves the landed cost of the whole category rather than shifting share between suppliers.
Canada and Mexico sit near the top of the table, and the duty numbers reflect it: Canada entered 99.9% of its value free of duty and Mexico entered 100% of its value free of duty. Cargo that qualifies under USMCA and is claimed correctly at entry pays nothing; cargo that does not qualify, or that is never claimed, pays the ordinary rate. The certification is the whole difference.
What importers actually paid in duty
Duty treatment is split. 40.3% of the entered value was dutiable and the rest came in free, usually under a trade agreement or a duty-free provision in the tariff schedule. CBP collected $114 million in all, an effective 9.9% on the dutiable value and $3.99 per $100 of goods once the free entries are counted.
The spread between origins is real. Among origins with at least 2% of the heading, Argentina paid the most duty relative to value — $9.87 per $100 — while Mexico paid $0.00. On a $250,000 purchase order that gap is about $25,000 in duty alone, which is worth pricing into a sourcing decision rather than discovering on the entry summary.
10-digit tariff lines under HTS 0306
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 0306.14.40.20 | Snow crab | $1.05 billion | 36.8% | $0.02 | Canada |
| 0306.17.00.41 | Other shrimps and prawns | $851 million | 29.8% | $9.36 | India |
| 0306.12.00.70 | Lobsters (Homarus spp.) | $267 million | 9.3% | $0.04 | Canada |
| 0306.32.00.10 | Live | $164 million | 5.8% | $0.00 | Canada |
| 0306.17.00.04 | Other shrimps and prawns | $90.7 million | 3.2% | $9.56 | Vietnam |
| 0306.14.40.90 | Other | $51.6 million | 1.8% | $1.82 | Canada |
| 0306.17.00.05 | Other shrimps and prawns | $43.9 million | 1.5% | $8.59 | Indonesia |
| 0306.17.00.42 | Other shrimps and prawns | $42.3 million | 1.5% | $9.29 | Argentina |
| 0306.17.00.07 | Other shrimps and prawns | $40.0 million | 1.4% | $9.24 | India |
| 0306.17.00.08 | Other shrimps and prawns | $28.9 million | 1% | $8.06 | Indonesia |
| 0306.12.00.50 | Lobsters (Homarus spp.) | $27.3 million | 1% | $0.00 | Canada |
| 0306.17.00.10 | Other shrimps and prawns | $25.1 million | 0.9% | $5.57 | Mexico |
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
The 10-digit lines under heading 0306
58 ten-digit lines carried trade under this heading in the period. The largest, 0306.14.40.20 (snow crab), took 36.8% of the heading at $1.05 billion. 0306.17.00.41, 0306.12.00.70 and 0306.32.00.10 follow. Rates diverge between those lines, so the classification your broker files is worth checking against the goods rather than carried over from the last entry.
What the duty stack looks like
The rate on an entry is not one number. It is a stack: the general (column 1) rate for the 10-digit line, less any trade-agreement preference the goods qualify for, plus whatever additional duties apply to that product and origin, all applied to the customs value declared. The $3.99 per $100 above is what that stack averaged across every entry in this heading — a benchmark, not a quote.
For the origins carrying the most volume, the per-country breakdowns go a level deeper: India (0306.17.00), Indonesia (0306.17.00) and Argentina (0306.17.00). To price a specific shipment, put your 10-digit code and country of origin into the tariff simulator.
What this means for your next shipment
The numbers above are a starting point, not the answer for a specific shipment: the rate depends on the exact 10-digit line, the origin, and any trade-agreement claim you can substantiate. Airlift USA arranges the ocean and air movement and coordinates classification and entry filing through our licensed broker network.
For the operational side rather than the tariff side, see the Refrigerated & Perishable Commodities guide for how this cargo moves, the India to USA lane for transit times and ports and the heading index to compare against the rest of chapter 03.
Price a shipment under HTS 0306
Airlift USA has moved ocean and air freight into the United States since 1999 and coordinates HTS classification, ISF and entry filing through our licensed broker network.
Methodology
Figures come from the U.S. Census Bureau's international trade statistics for imports for consumption — the customs value of goods entered into US commerce, not shipments in transit or goods held in bonded warehouses. The period is March–July 2026 (5 months of data), and coverage is limited to 55 major origin countries, so totals here are lower than published US-wide totals for the same heading.
Three quantities are additive and everything else is derived from them: entered customs value, dutiable value and calculated duty. Effective duty is calculated duty divided by dutiable value — the rate CBP actually applied to the part of the trade that was dutiable. Dutiable share is dutiable value divided by entered value; below 20% it means the trade entered mostly free, under a trade agreement or a duty-free provision. Duty per $100 spreads calculated duty across all entered value, which is the figure comparable between origins.
Chapter 98 and chapter 99 are excluded: those are special classification and temporary-measure provisions rather than product headings. Heading and tariff-line descriptions are the current HTS text. Values are historical and reflect duty as calculated at the time of entry; they are not a quote and not a prediction of the rate on a future shipment.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value. Census data is a work of the US government and is in the public domain.
Frequently asked questions
Which countries export the most crustaceans, whether in shell or not, live, fresh, chilled to the United States?
Canada is the largest origin under HTS heading 0306, with $1.57 billion entered between March and July 2026, or 55.2% of the heading. India follows at 22.5% and Indonesia at 9.2%. Figures cover the 55 major origin countries in this dataset. Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
How much import duty is paid on crustaceans, whether in shell or not, live, fresh, chilled under HTS 0306?
Across all origins, 40.3% of the entered value was dutiable and CBP calculated $114 million of duty over the five months — an effective 9.9% on dutiable value, or about $3.99 per $100 of goods across the whole heading. Your own rate depends on the exact 10-digit line and country of origin.
Which HTS codes fall under heading 0306?
Heading 0306 covers crustaceans, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked crustaceans, whether in shell or not, whether or not cooked before or during the smoking process; crustaceans, in shell, cooked by steaming or by boiling in water, whether or not chilled, frozen, dried, salted or in brine. 58 ten-digit lines recorded imports in this period; the largest by value were 0306.14.40.20, 0306.17.00.41, 0306.12.00.70 and 0306.32.00.10. Duty rates differ between those lines, so the 10-digit classification matters more than the heading.
Which origin pays the lowest duty on crustaceans, whether in shell or not, live, fresh, chilled?
Among origins with at least 2% of the heading, Mexico paid the least duty relative to entered value — about $0.00 per $100 of goods, with 100% of its value entering free. Duty is only one part of landed cost, and a claim has to be substantiated at entry to be allowed.
How do I check the duty on my own shipment?
Use the Airlift USA tariff simulator with your 10-digit HTS code and country of origin to see the duty stack that applies today, then confirm the classification before you file. Airlift USA coordinates classification and entry filing through our licensed broker network and can review the code against your product specification.