Fresh or Chilled Trout Fillets (Salmo trutta, Oncorhynchus spp.)

Rainbow trout (Oncorhynchus mykiss) classifies under 030442 (0304420000), while Atlantic and Pacific salmon fillets fall under 030441. Despite their visual and flavor similarities — especially in farmed, flesh-colored rainbow trout — the species-level distinction is determinative for HTS classification. Importers should ensure commercial invoices and packing lists specify the scientific species name to avoid misclassification.

FDA has conducted targeted sampling of farmed trout from certain origins for unapproved veterinary drug residues, including malachite green. Importers should request residue-testing certificates from suppliers and verify that the exporting establishment has no active FDA import alert before finalizing purchase orders.