0302.35.01.00 - Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)

This HTS classification covers fresh or chilled Atlantic and Pacific bluefin tunas, scientifically identified as *Thunnus thynnus* and *Thunnus orientalis*. These large, migratory fish are prized for their rich, dark flesh and are distinct from other tuna species and skipjack due to their specific genetic makeup and physical characteristics. This heading is reserved for whole fish or fish that have been only minimally processed to maintain freshness, such as gutting or head removal, but not filleted or otherwise processed into fish meat.

Distinguishing this category from its siblings is crucial for accurate classification. While other subheadings within 0302.3x address albacore, yellowfin, skipjack, and bigeye tunas, this specific code is exclusively for Atlantic and Pacific bluefin. This differentiation is based on the scientific genus and species, ensuring that only the specified bluefin tuna varieties are included here, preventing misclassification with other commercially important tuna species.

As this node represents a leaf category within the HTS database, there are no further subcategories or subdivisions. Therefore, the classification focuses solely on the accurate identification of fresh or chilled Atlantic and Pacific bluefin tuna. Importers and exporters should ensure that documentation precisely reflects the species to align with customs requirements for this specific tariff line.