0303.51.00.00 - Herrings (Clupea harengus, Clupea pallasii)

This HTS category, 0303.51.00.00, specifically classifies frozen herrings, encompassing both the Atlantic herring (Clupea harengus) and the Pacific herring (Clupea pallasii). These fish are preserved through freezing and are intended for consumption, excluding any processed forms like fillets or other fish meat that would fall under heading 0304. The classification is defined by the species of herring and their frozen state, differentiating them from fresh or chilled herrings which are classified elsewhere.

Within the broader group of frozen fish, this category is distinguished from its sibling entries by the precise species of fish. For instance, while sibling categories like 0303.53.00.00 cover sardines, sardinella, and sprats, and 0303.54.00.00 includes various types of mackerel, 0303.51.00.00 is exclusively for herrings. This level of specificity is crucial for accurate tariff application, ensuring that each distinct type of fish is correctly identified and taxed according to its specific classification.

As a leaf node within the HTS database, 0303.51.00.00 does not have further subdivisions. Therefore, the focus for classification within this code remains solely on identifying the frozen product as belonging to the species of herring. Customs professionals should confirm the species through appropriate documentation and, if necessary, physical inspection, ensuring compliance with the precise definition provided for this particular HTS classification.