Frozen Flatfish Fillets

Pacific halibut (Hippoglossus stenolepis) and Atlantic halibut (Hippoglossus hippoglossus) are classified under 0304835005 and 0304835025, while Greenland turbot — also called Greenland halibut (Reinhardtius hippoglossoides) — has its own dedicated line at 0304835010. Despite the overlapping common name 'halibut,' these are distinct species with different tariff lines. The scientific name must appear in commercial documentation to support correct classification, and CBP may request species verification for ambiguous shipments.

Imports from China require FDA prior notice, a commercial invoice identifying the species and pack format, and confirmation that the processing facility is FDA-registered with an active seafood HACCP plan. Importers should also check whether any Section 301 tariffs apply to the specific HTS line being declared, as flatfish fillet lines may be subject to additional duties depending on the tariff action in effect at time of entry. A licensed customs broker can confirm current duty exposure and admissibility requirements.