HTS 0304735000 covers frozen fillets of pollock species other than Alaska pollock — a classification distinction that matters commercially because Alaska pollock (Gadus chalcogrammus) is one of the world's highest-volume whitefish and classifies under a separate subheading. Species falling here include Atlantic pollock and other non-Alaska pollock, which are traded in smaller volumes and often sourced from North Atlantic fisheries. FDA seafood HACCP requirements govern admissibility, and species-specific documentation is essential given the close physical resemblance among pollock varieties. Importers should obtain supplier-level species identification to support both the HTS classification and compliance with FDA seafood market name rules.

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