A broad residual line within the restructured 0303.89 subheading, this code captures frozen whole or dressed fish not covered by any other named or species-specific line in the heading — and explicitly excludes not only fillets, livers, and roe but also other fish meat of heading 0304. Its NESOI status means it should be used only after exhausting all named species subheadings, and CBP may scrutinize entries where a more specific classification exists. FDA Prior Notice and admissibility review apply to all seafood imports regardless of species, and SIMP obligations may attach depending on the fish involved. Importers relying on this line should maintain robust species documentation to defend the classification if audited.

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