0303.81.00.11 - Dogfish (Squalus spp.)

This HTS classification, 0303.81.00.11, specifically pertains to frozen dogfish of the genus *Squalus*. Dogfish are a type of small shark, commonly found in marine environments. This category covers the whole, headless, or gutted frozen dogfish, excluding any processed forms such as fillets or meat which would fall under heading 0304. The "frozen" designation is critical, ensuring that only product preserved through freezing is included here, differentiating it from fresh or chilled dogfish.

Within its sibling category, 0303.81.00.91, designated for "Other," this classification clearly separates *Squalus* species. While 0303.81.00.91 would encompass other types of sharks not specifically identified as dogfish of the genus *Squalus*, this sub-heading provides a precise identification for a commonly traded species of shark. The distinction is made based on specific taxonomic identification.

As this is a leaf node within the HTS structure, there are no further subcategories under 0303.81.00.11. Classification at this level is definitive for frozen dogfish of the genus *Squalus*. Importers and exporters should ensure that the product's origin documentation and labeling accurately reflect the genus *Squalus* for correct classification within this specific HTS code.