Chapter 03 is the HS classification system's 'Fish and crustaceans, molluscs and other aquatic invertebrates', covering all aquatic animals in live, chilled, frozen, dried, salted and other states. This chapter is divided into two headings: 0301 for live fish, and 0302-0309 for aquatic products in other states. The chapter notes explicitly exclude dead fish, fillets, fish meat and other processed products, which are classified under Chapter 16. This chapter is a core chapter in aquatic product trade, involving aquaculture, fishing, ornamental and many other fields. Heading 0301 specifically covers 'live fish', including live fish of all species, regardless of their use (food, ornamental, aquaculture, release, etc.). Under this heading, it is subdivided by fish species: 0301.1 for ornamental fish, 0301.9 for other live fish. Live fish must retain living characteristics, and during transport, methods such as oxygenation and temperature control are usually adopted. The heading does not include fry (which have separate subheadings), fish eggs (0305 or 0511), or dead fish (0302 or 0303). The first 2 digits '03' represent Chapter 3, 'Fish and crustaceans, molluscs and other aquatic invertebrates'. Digits 3-4 '01' represent the heading 'live fish', distinguishing it from 0302 (fresh or chilled fish), 0303 (frozen fish), etc. Digits 5-6 '91' are the subheading, meaning 'other live fish', i.e., all live fish other than ornamental fish (subheadings 0301.11 to 0301.19), including trout, salmon, carp, etc. Therefore, 030191 in full means 'live trout', belonging to non-ornamental live fish. This commodity is live trout, has living characteristics, and is not ornamental fish (trout is usually for food or aquaculture release), so it is classified under 0301.91. If the trout is dead but unprocessed, it is classified under 0302 or 0303; if it is ornamental trout (such as certain small varieties), it may be classified under 0301.1; if it is fry, it is classified under 0301.92 (other live fish fry).

Product name: The specific variety should be declared, such as 'live trout', and the Latin scientific name (e.g., Oncorhynchus mykiss) should be indicated for accurate classification. State: Clearly state 'live', and explain the transport method (e.g., oxygenation, water tank, etc.) to prove compliance with the definition of live fish. Use: Declare the actual use, such as 'food', 'aquaculture', 'release' or 'ornamental', which affects the subheading determination. Specification: Provide individual weight or body length range, such as '100-200 grams per fish', which helps customs statistics and document review. Latin scientific name: Fill in the accurate Latin scientific name, such as Oncorhynchus mykiss (rainbow trout), to avoid confusion with synonyms of the same species. Source: Indicate 'farmed' or 'wild'; some countries have endangered species control requirements. Packaging method: Describe the packaging type, such as 'plastic oxygenated bag', 'live fish transport vehicle', to ensure compliance with transport and quarantine requirements. Product name: live trout (rainbow trout); Latin scientific name: Oncorhynchus mykiss; State: live, oxygenated bag; Use: food; Specification: 150-250 grams per fish; Source: farmed; Packaging method: double-layer oxygenated plastic bags, 10 fish per bag. Misclassifying live trout under 0301.1 (ornamental fish), leading to incorrect regulatory conditions. Ignoring the declaration of the Latin scientific name, which may trigger classification doubts or delay customs clearance. Failing to indicate the use; if for aquaculture breeding, it may involve quarantine approval.

The core basis for classification is the HS Explanatory Notes and the Explanatory Notes to the Import and Export Tariff Commodities and Headings. Live trout is live fish and not ornamental fish, so it is classified under 0301.91. It is necessary to confirm that the commodity is live, non-ornamental, and not fry. If it is fry, it is classified under 0301.92; if it is ornamental trout (such as certain small rainbow trout varieties), it is classified under 0301.1. In addition, reference should be made to the national subheading notes of the Import and Export Tariff of the People's Republic of China. 0301.92 Other live fish fry: 0301.92 specifically refers to fry (young fish), usually with a body length below a certain standard, used for aquaculture; while 0301.91 is adult fish or live fish that do not meet the fry standard. 0302.14 Fresh or chilled trout: 0302.14 is trout that has died but not been frozen, maintaining freshness; while 0301.91 is live, with obvious living characteristics. 0303.14 Frozen trout: 0303.14 is trout that has been frozen and is dead; live fish must remain alive. 0301.11 Ornamental fish (freshwater): 0301.11 is freshwater ornamental fish, such as goldfish and koi; trout is usually for food or aquaculture, and if for ornamental use, proof must be provided. 0304.49 Other fresh or chilled fish fillets: 0304.49 is fish fillets, boned and sliced, belonging to processed products; live trout has not undergone any cutting. Confirm whether the commodity is alive and has signs of life. Confirm whether it is ornamental fish and whether the use affects classification. Confirm whether it is fry and whether the body length or weight meets the standard. Check the Latin scientific name to ensure the species is accurate. Check whether the packaging and transport method support the live state.

What is the difference in HS codes between live trout and chilled trout? Live trout is classified under 0301.91, and chilled trout under 0302.14. The key difference lies in the state of life: live fish must be alive and are usually transported in oxygenated water; chilled fish are dead and preserved with ice. When declaring, proof of state must be provided, such as transport temperature records and photos of survival. If the trout is for ornamental use, which code should it be classified under? If the trout is indeed for ornamental use (such as certain small rainbow trout varieties), it should be classified under 0301.1 (ornamental fish). However, note that most trout are for food or aquaculture, and customs may require proof of ornamental use. If it cannot be proven, it is still classified under 0301.91. When declaring live trout, is the Latin scientific name mandatory? Yes, the Latin scientific name is an important basis for accurate classification. For example, rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta), although both are trout, may involve different regulatory conditions. Failure to provide the Latin scientific name may cause customs to question the classification and even delay customs clearance. What is the difference in codes between live trout fry and adult fish? Live trout fry is classified under 0301.92 (other live fish fry), while adult fish is classified under 0301.91. Fry usually refers to young fish with a body length below a certain standard (such as 5 cm), used for aquaculture. When declaring, specification data such as body length and weight must be provided so that customs can judge. What regulatory documents are required for importing live trout? In addition to the regular customs declaration form, usually the Import and Export Animal and Plant Quarantine License, the official quarantine certificate of the exporting country are required, and it may also involve a permit for import and export of endangered species (if it is a wild endangered species). For details, consult the General Administration of Customs or the local customs. How to query the tariff rate for live trout? You can log in to the official website of the General Administration of Customs of China or use the 'Internet + Customs' platform, enter HS code 030191 to query the latest tariff rate. Note that the rate may change with free trade agreements, provisional rates, etc., and it is recommended to refer to the time of declaration. If live trout dies during transport, how should it be handled at customs declaration? If it dies during transport, the commodity state becomes non-live, and it should be classified under 0302 (fresh or chilled) or 0303 (frozen), depending on the preservation method. The state must be reconfirmed before customs declaration, and the declaration elements must be modified to avoid penalties due to coding errors. Can cross-border e-commerce sales of live trout apply 030191? Yes, but cross-border e-commerce usually involves small parcels, live fish transport is difficult, and quarantine requirements must be met. If through a bonded warehouse or direct mail, the live state must be ensured and 030191 declared. It is recommended to communicate with customs in advance to understand the specific regulatory conditions.