Classified at the broadest level within the Gadidae-family fillet group, 0304440000 serves as the general provision for fresh or chilled fillets spanning the eight named families — Bregmacerotidae, Euclichthyidae, Gadidae, Macrouridae, Melanonidae, Merlucciidae, Moridae, and Muraenolepididae — before more specific species lines apply. In practice, entries at this level are uncommon because most commercially significant species (cod, haddock, pollock, hake) have dedicated 10-digit lines; this provision typically captures less-traded species within the named families. FDA admissibility review and Prior Notice requirements apply to all such fish fillet imports.

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