0302.51.00.10 - Atlantic

This HTS classification, 0302.51.00.10, specifically covers Atlantic cod. This designation applies to whole, fresh, or chilled cod belonging to the species *Gadus morhua*. The classification is within Chapter 3, which pertains to fish and crustaceans, mollusks, and other aquatic invertebrates. The parent context is established by the broader category of fish, fresh or chilled, excluding fish fillets and other fish meat of heading 0304. Further refining this, it falls under fish of specific families, and most narrowly, cod, of which Atlantic cod is a distinct entry.

Distinction from its sibling category, 0302.51.00.90 "Other," is crucial. While the sibling category would encompass other types of cod (such as *Gadus ogac* or *Gadus macrocephalus*) or any other fish within the cod family that do not meet the specific definition of Atlantic cod, this classification is exclusively for *Gadus morhua*. Therefore, the key differentiating factor is the species of cod.

As this is a leaf node, there are no further subcategories under 0302.51.00.10. Classification at this level relies entirely on accurately identifying the product as Atlantic cod, fresh or chilled, and ensuring it does not fall into the categories of fillets or other fish meat, which are classified elsewhere. The physical state (fresh or chilled) and the specific species are the primary determinative factors for this classification.