The US tariff schedule carves out herrings (Clupea harengus and Clupea pallasii) by scientific name because they have their own dedicated 10-digit provisions within Chapter 3. Including a frozen herring shipment under 0303590000 would constitute a misclassification and could trigger a CBP penalty or delay. Importers should verify species identification documentation before filing entry.

Yes. Frozen whole anchovies intended for reduction into fishmeal still classify under 0303590000 based on their physical form at the time of importation. The intended end use (human consumption vs. industrial reduction) does not change the HTS classification, though it may affect FDA admissibility procedures and labeling requirements.