At the 10-digit level, this residual line captures fresh or chilled fish meat — in forms other than fillets or steaks — that does not fit any of the more specific species lines within heading 030459. It functions as the final catch-all for marine and other fish not enumerated elsewhere, making accurate species documentation on commercial invoices especially important to justify classification here rather than under a species-specific line. FDA prior notice and admissibility review apply, and importers should confirm whether the species is subject to NOAA SIMP traceability requirements before shipment. Given the residual nature of this line, customs brokers often encounter classification disputes when a species could plausibly fit a more specific heading.

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