0303.89.00.37 - Whitefish

This classification, HTS Code 0303.89.00.37, specifically covers "Whitefish" that are frozen and are not fillets or other fish meat of heading 0304. Within the broader category of other fish, excluding edible offal, and further refined to fresh-water fish, this subheading zeroes in on a particular group of valuable food fish. The term "whitefish" in this context generally refers to certain species known for their white, flaky flesh and are typically found in freshwater environments.

To differentiate this category from its siblings, it is important to note that other subheadings at this level cover distinct groups of freshwater fish. For example, 0303.89.00.28 is for pike and pickerel, while 0303.89.00.31 is for perch and pike perch. Similarly, 0303.89.00.34 is reserved for sauger and 0303.89.00.40 for specific types of tilapias. This subheading, 0303.89.00.37, captures whitefish species that do not fall under those specific classifications, such as lake whitefish (Coregonus clupeaformis) or ciscoes, when presented in their whole frozen state or as portions other than fillets.

As this is a leaf node, there are no further subdivisions under this specific HTS code. Therefore, the classification rests on accurately identifying the fish as a type of whitefish belonging to the freshwater category, distinct from the other named freshwater species at this level, and ensuring it is presented in a frozen form that does not qualify as fillets or other fish meat of heading 0304. Proper identification of the species according to fishery or scientific nomenclature will be crucial for accurate classification.