0302.89.50.64 - Lingcod (Ophiodon elongatus)

This HTS classification, 0302.89.50.64, specifically identifies Lingcod (Ophiodon elongatus) when imported fresh or chilled. This subheading falls under the broader category of "Other fish, excluding edible fish offal," indicating that the product is whole fish or pieces that are not classified as fillets or other fish meat under heading 0304. The primary characteristic for inclusion here is the species itself, Lingcod, which is distinguished from other types of fish within the "Other" subcategory.

Within the "Other" classification at this level, Lingcod is differentiated from its direct siblings, which include specific species like Smelts, Cusk, Shad and sturgeon, and Sable fish, among others. The key distinguishing factor for 0302.89.50.64 is the precise identification of *Ophiodon elongatus*. Therefore, any fresh or chilled fish that is not Lingcod, even if it falls under the general "Other fish" category, would be classified elsewhere, depending on its specific species and any further sub-classifications.

As this subheading is a leaf node, there are no further subcategories to introduce. The classification of Lingcod at this precise level is definitive for imported fresh or chilled whole fish or pieces of this species. This ensures accurate customs declaration and tariff application for this particular seafood product.