Edible fish offal — including swim bladders (maw), cheeks, collars, and other byproducts not classified as fillets, livers, or roes — occupies a growing niche in Asian-American foodservice and specialty retail channels, where fish maw in particular commands significant premiums. This residual line under heading 0302 covers such products in fresh or chilled form when no more specific provision applies. FDA admissibility requirements and HACCP documentation apply; importers should also verify that swim bladders and similar products are not subject to CITES controls if derived from protected species.

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